Scottsdale, while I totally agree with your hopes (I've been arguing for 15" MBA's and/or higher resolution as well as less humongous bezels for a while), don't you think it is looking more and more like we'll have to wait another half year for the Air's to get the update we're waiting for?
The September event is going to be about iPods and iOS update for the iPad. Also some have argued that Sandy Bridge is the most appropriate update to go hand in hand with a thorough Air re-design, so could it be that all we'll see this fall, if anything, will be a minor spec bump, rendered unattractive because the real improvements are to come a few months later?
I personally wouldn't be satisfied with "only" a 20% improvement in CPU speed as well as 4 GB of RAM, if all the rest stays the same. The updates we're hoping for are really a big (be it long overdue) step. They're going to make the current MBP's with their heavy glass screens and volume-wasting tapered design look like dinosaurs, and even die-hard optical drive collectors might see the light. For Apple to go through such a revolution in their laptop design without a major announcement some time in the fall seems unlikely.
So as much as I don't like it, at this point I don't see anything substantial happening before 2011.
I actually finally believe the MBA update is coming BEFORE end of year. The rumors really have me convinced this is the real deal.
I don't feel the CPU needs ANYTHING. The current class SL9x00 C2D CPUs are amazing. I don't feel the Arrandale Core i7 LV nor Sandy Bridge would be bad selections at all. The important thing is to not get a slower ULV CPU, and to NOT get STUCK with Intel's piss poor IGP. We will not have either in a 13" MBA. I do believe the 11" MBA is possible, especially with the rumors pointing towards it. I believe that MBA would have the Intel IGP. I believe the 13" MBA would have the ATI 5430. I believe the 5430 is the ONLY discrete solution on the market right now PERFECT for what Apple is doing with the MacFive.
Apple showed us with the 21.5" iMac exactly where the MacFive IS going. We just had to look at the history and see that's the truth. Waiting a little longer wouldn't be a bad thing. However, the Sandy Bridge CPUs are not going to be much better in terms of CPU performance. They're only going to have nice IGP gains. Since I would pray that the IGP is turned off, I don't really care about Intel's worthless offerings.
I really believe an MBA with a 2+ GHz offering, ATI discrete GPU, 8 GB RAM BTO upgrade possibility, 256 GB Toshiba SSD BTO upgrade, 13" IPS display, new uniform .5" thickness mirroring design cues from iPad and iPhone 4 updates, and aluminum trackpad will give us an MBA really worth the investment... and Mac branding. The MBA is supposed to be light years ahead of the competition.
We can look at the past and keep our opinions about what the MBA should be based on where it was in October 2008. When the v 2,1 MBA was introduced, it absolutely positively BLEW AWAY EVERY OTHER ultraportable on the market! It wasn't even close. An MBA with a 5430 ATI GPU, Core i7 LV CPU, 8 GB RAM, 256 GB Toshiba SSD, 13" IPS display, and new design elements will mirror that sort of dominance IF the price point is acceptable.
I believe $2099/2199 with a $400 8 GB RAM BTO upgrade price would be right on for perfect performance to price. I don't care if they want to charge double that, or triple that... I just want a more powerful, non 10-hour battery MBA, that can keep up with the MB/13" MBP yet focuses on mobility to the max and that means being as light as AIR.
What more could we want from an MBA? Apple needs to make the MBA relevant and competitive in the way it was in October 2008, or it needs to drop the price considerably and make it a different type of product. I want them to keep it a luxury great Mac that's like a flagship offering of where Mac notebooks SHOULD BE in the next few years in terms of mobility, NO ultramobility.
I have hopes for this MBA in September all the way through early November. An MBA in January would possibly mean USB 3.0 OR LightPeak. It would also possibly mean Sandy Bridge, but who really cares... all of the Intel CPUs are plenty capable enough in terms of CPU performance capabilities. Where I want it to be focused is in all of the OTHER areas like GPU, RAM, drive space/speed, and etc.