It seems that the forthcoming Android Honeycomb will require a dual-core ARM Cortex-A9 processor, such as the NVIDIA Tegra 2 chip, to work. I can buy that. It's tough luck for anyone using a Samsung Galaxy Tab or a Dell Streak, but that's life on the bleeding edge of technology.
To users ready to blow a fuse because they no longer have the newest and best toy on the block, I suggest that they chill out. Does your device still do what you bought it for? After all, I'm still perfectly happy with my first generation iPod Touch, and it will never see a significant operating system upgrade again.
But, if you're a developer, oh boy, would I be unhappy. It's been hard enough to keep up with all those different "current" versions of Android, the chip vendor's different software stacks, and the devices wildly varying hardware, but now to deal with two different flavors of Honeycomb. Ow. Just ow.
It's not going to be any fun for users anyway. For example, there are no established guidelines for where icons should appear on an Android display. My idea of a good time isn't playing "Where's the application!" every time I pick up a new tablet or phone.
It may be hard work but I think Apple made the right decision in supporting iOS4 across its platform family and depreciating the older versions with every new operating system release. It's made its developers lives a lot easier.