My two cents.

The N9 looks like a potential new phone for my wife who currently uses an N8. I can't see it replacing my N900, no way. But then I suppose my wife would miss the HDMI out which she uses to display photos and videos on the TV, so not too good for her either.

It isn't easy to 'convert' iSheep to other devices because the ecosystem locks them in too rapidly. More the hardware than the software. All these devices with integrated Apple docks is what I'm talking about here. Sure, you could get an iPod, but that flies in the face of convergence.

The mass market is Android, not iPotato. If the N9 was going to make any impact in the mass market it should have set it's sights on the little robot not the bitten fruit. I notice that the early Nokia PR is deliberately playing down the OS of the N9. Most Android phone adverts seem to be bigging up their OS. This may be just because Nokia trade on their name in the markets this phone seems to be aimed at.

I can see that Nokia have tried to promote three activity based screens for the N9 which must have been from 'extensive consumer research'. I guess this must have been driven by a predetermined market segment which probably excludes most N900 users. I think that big business generally assume that geeks are too narrow in their interests and so it isn't worth canvassing their ideas or observing their activities. The idea of activity based screens is bang on the money, but Nokia's execution is way off the mark in the N9. They should have spent a week reading through 'Show off your Maemo 5 screenshots' and aggregated the way in which N900 users divide their homescreens into different activities. The work was already done for them.

It would have been sensible for Nokia to have incorporated a basic/advanced option into their UI layer, permitting Maemo 5 type customisation through the advanced option. As it stands, the N9 UI is less configurable than Symbian 3