The software releases ARE compatible though. Upgrading older products (not just Apple stuff) to run newer software ALWAYS causes performance issues, but it doesn't cause the device not to function altogether as the word "incompatible" suggests. I can't understand how this concept is so ubiquitous with computers and people don't make the same correlations with their handheld devices. Last year's products will not run this year's software as well as this year's products can. That's all there is to it. If Apple thought about things the way you seem to think they should then there would never be any advancements in their technology. As more powerful hardware emerges they are trying to release products and software updates to keep up with these things. They are a BUSINESS which exists to make and sell NEW products. To sell new things, there must be improvements. Apple can't sacrifice staying on the cutting edge of a multi-billion dollar industry just to appease you. Sorry if this comes as a bit of a shock.
I'm sorry, but I think you're misunderstanding the severity of the issue here. It's one thing to say that we shouldn't expect the iPad 1 to run iOS 5 as well as an iPad 2 can. But what I take you, and others in this thread, to be saying is that iPad 1 users, or any users of previous generation electronics in general, should EXPECT crashes to the degree that we're seeing on the iPad 1 when they upgrade the software. I'm sorry, but that's pure and utter nonsense! I can understand that third-party apps may have problems, but we're talking about SAFARI here.
Allow me to illustrate my point. I can power cycle my iPad, thus ensuring that no other apps are running, launch Safari and browse to a website (southwest.com causes this every time for me, but it's not the only example), and have Safari crash in less than a minute. Then every time I try to start Safari after that it crashes again if I don't stop it from loading that site. Are you honestly telling me that I should have EXPECTED such performance when I upgraded to iOS 5? Sorry, but that's BS.
I buy Apple products because they are quality, and Apple usually stands behind their hardware for many years by continuing to provide software updates. My expectation is that Apple supports their mobile devices for at least two years with firmware updates. I don't find this at all unreasonable, considering this is the pattern Apple has been following since the release of the iPhone in 2007.
To contrast this, my expectation of any other mobile device is that once I buy it I MIGHT receive one or two minor firmware updates, but beyond that I'm pretty much stuck with the version I got when I bought it. Thus, this is one major advantage of buying Apple products in my mind.
If you folks are saying that we should EXPECT previous generation Apple products to suffer SERIOUS software/firmware issues whenever we upgrade them, and further that we should NOT have the expectation that Apple will resolve such problems, then why should we even bother upgrading? If I can't upgrade my Apple device, then that seriously lowers my impression of Apple products. Personally, I'll continue to buy iPhones and Macs (on the fence about another iPad), but if this is truly the expectation then I don't blame others for thinking twice. And honestly, I may have to reconsider the advice I give others when they're making purchasing decisions.