Seems like a good time to switch back to a basic Nokia and a laptop. The only people looking forward to a post-PC era are the ones tied to their smartphones.
Some of us need large screens and more processing power.
Absolutely, and in this case a laptop has a significantly different use-case from a phone. Noone's doing serious development/creative on their phone or tablet, and no doubt PCs will exist for these functions for decades more. But for making calls, casual web browsing, and music, your N900 will perform these tasks as well or worse than a iPhone or Android.
I realise @geeNoThanks might be partly trolling so I'll leave it at "different strokes for different folks"
Some of us need large screens and more processing power.