Random brain dump...
A slightly underwhelming launch, because we knew so much of it already.
I'm not sure the mobile me thing is going to be particularly compelling to the majority. Doesn't seem to have any contact syncing relevance to regular web mail users. Photo integration is only with the 'walled garden', not the most popular service (flickr). I'm sure it will be slick, but for many people it's just too proprietary. You have to buy the whole Apple way of doing stuff to get the benefits. And pay extra too. So, meh on that one.
GPS... no word on battery life here, which is notable. I'm guessing that for a quick "where am I" it will be fine, but it won't be practical as turn by turn device, without a car power adaptor to keep it alive. GPS functionality could be one of those catalyst things though. API + GPS + great screen + touch... could make for some very neat apps. I think that one will be a 'grower'.
3G Battery life. Not quite as sorted as I'd hoped. It's 2-3 hours less browsing than the existing iPhone on EDGE (although much better than the N95, which was nearly useless for commute-length browsing. Battery dead for a round trip bus journey in Zone 1.). I could get nearly 7 hours browsing originally... now nearer 4, and it's not quite enough for me. It'll be less on the new one, albeit a much much better browsing experience.
(Side note about the iPhone having 'faster' 3G. In reality that is probably down to the faster rendering of Safari on ARM. Just as on the existing model, the EDGE browsing+rendering was not far short of other manufacturers 3G models. Browser rendering, surprisingly, does need a reasonable bit of horsepower.).
Push email isn't too important for me (or I suspect many other consumer users). 15 minute IMAP polling was the main step up, and we've got that.
No changes to core functionality though... the biggest for me being C&P. I guess we'll keep on waiting for that... been a bit long now though.
So, err, yeah s'okay I guess. I'm not quite frothing to upgrade yet, but maybe when I see the 3G browsing, maybe I'll take the plunge, depending on how the upgrade process/pricing works.