That's actually not what I was saying. I was saying you can't be productive on a 10" screen. What I meant to say was that I define productivity as anything more than light computer use (i.e. email and web surfing), and the majority of computer users (as opposed to netbook or iPad users) could not be productive on a 10" screen a majority of the time, that is, using a 10" notebook as their primary machine for work.
I highlighted the parts which I think indicate that what you said and what you meant to say actually differs, and you obviously know it (now?).
I question how productive, in that sense, the majority of users could be on an 11.6" screen a majority of the time, but I am not saying that no one could. I was ultimately saying to Moodikar that I didn't think the majority of MBA users and want-to-be MBA users could ever find much use for a 10" MBA. I think you knew that's what I was trying to say.
Actually I did not know that you meant this. And please excuse me if I did not put enough effort into figuring out what you really wanted to say. But this is a forum, we're only communicating based on written text, and as you did not seem to be using sarcasm or irony, I took your word for granted.
You stated you cannot be productive on a 10" screen (as some kind of fact, which may be true for your group of people (graphics designer or design engineer who want to use the MBA as their primary computer)) and then went on to apply your fact/conclusion to screen sizes bigger than that. MOST professional graphic designers I know would not remotely think about doing actual work on a 13,3" laptop. If they really want to be productive (and we obviously agree about what it means to us..

) they would not use a 13,3" laptop. If you are working with big or complex images with multiple layers etc. (photoshop etc.) the MBA does not meet the hardware you want to work on (maybe it even does for PS). Especially if you are an ENGINEER (CAD, simulation etc, creating, designing and constructing), you would do some fairly intensive work.
So a MBA may work for you as a primary machine, but I strongly doubt that it does for everyone in your branch.
You have your main projects on your work machine at work I guess? I don't know exactly what you are doing, but somehow I cannot imagine that you transfer your project's current status to your MBA after work (daily, and over WiFi I guess, as your MBA has no ethernet or firewire ports.. of course there is your USB port, but isn't it a hassle to connect your work machine to an external drive, transfer the data, unplug it, plug it in your MBA and transfer the data?) and then keep on working on it through out the day(s).. If I'm incorrect, please care to elaborate.
Just for reference, a 13.3" screen has about 79.5 square inches of screen area. An 11.6" screen would have about 60.5 square inches, and a 9.7" screen like the iPad or the 10" MBA that Moodikar was asking for would have only about 42 square inches of screen area. An 11.6" would have 19 square inches less screen real estate. That may not sound like much, but that is 24% less workspace. A 9.7" screen would have 37.5 fewer square inches of screen real estate than the 13.3". That's 47% less workspace. Are there any current MBA users who would prefer to give up that extra real estate (without even mentioning giving up the full-size keyboard)? I don't think we need to take a poll. I don't think any MBA users or prospective MBA users out there want to give up 47% of their screen real estate, the full-size keyboard, and processing power to have an MBA netbook with the same screen area, weight, and processing power of the iPad. As I said to Moodikar, if you want a 10" MBA, buy an iPad. And, yes, I question whether they could be as productive on a machine with 24% less screen real estate and probably less processing power as they would find on the rumored 11.6" MBA. I don't think a majority of users can be productive a majority of the time, even now, on the MBA. We will see what an update brings, but 24% less screen real estate is not going to add to anyone's productivity. Is that really nonsense, Jayomat? Does anyone else think what I'm implying is unreasonable? If I'm in some way impaired in my reasoning skills, I would like to know.
And this is the point where a definition for "productive" or "productivity" would come in handy.
Here is a quick definition from apple's dictionary for productive:
achieving or producing a significant amount or result
and this is for productivity:
the effectiveness of productive effort, esp. in industry, as measured in terms of the rate of output per unit of input
He does not want a device which runs only specifically designed apps. He wants a computer with a smaller footprint (which should be considerably lighter). Telling him to buy an iPad is nonsense. If you want to do some light programming or [insert your activity] on the go, do you think it's productive to use the notes app to write code in there? No? I kind of thought. And that is the whole point. Just because you define productivity or productive for your specific group of users or needs, you cannot state that it's the same for everyone.
To the point:
Light use can refer to the processing power, or to the amount of
complexity in user input needed to get the job done. If you work in customer support, your whole work may
only include answering emails, supporting forums etc. A 11,6" laptop can house a full-size keyboard. What more than a full-size keyboard and a half decent screen do you need to get the job done, get the desired result? Is that light usage? Concerning processing power, yes, but not concerning the needed user input. Remember we are still talking about someone who does most of his work in the office or wherever (as you do?), and uses his, in most cases max. 400€ netbook (smaller laptop) on the go. Of course you want a MBA to be your primary computer, but this wish does, to a certain extend, arise from the fact that it's so expensive. You don't want to buy a 1500€ computer and only use it for 1 hour a day. You would feel bad, unless you are a rich *****
Many students have netbooks, I would estimate between 50 and 75%. Imagine you are at university working on an assignment (the subject does not matter) and need to look up a definition in a pdf (maybe on you HDD?) or in the internet. Can we agree that the process of working on that assignment can be defined as being productive? If that little netbook can help you to get it done, did it improve your productivity? Did it help you in the process of being productive? A computer's usefulness is not defined by hardware specifications, but by what it can do for [insert yourself].
As light use can mean totally different things, being "productive" can mean completely different things. As I said, can the people described above be productive on a 11,6" screen (even smaller, of course not infinitely...

)? Certainly. Can a graphical engineer be productive on a 11,6" screen? Maybe not, but don't neglect the fact that your sole needs are not the one's for everyone.
And just because someone wants a MBA with a smaller footprint, it does not, by any means, conclude he should get an iPad, period.
So to answer your question: Yes, I still do not agree with what you said

and my opinions on the highlighted statements remain the same (no offense my friend)