webOS feels more like a phone OS. PIM: I would say they're on par. But webOS doesn't have a homescreen/widgets like maemo where you can put a calendar overview. So you have to start the calendar app. But I'm not a heavy PIM user, I only trust my brain.. Yes, the camera is a downgrade. I love to do macro shots with the N900. Not possible with a webOS device up to date. There are some similarities regarding the UI comparing webOS and Harmattan. No wonder as the webOS UI designer works on Harmattan now.
@ jakiman: If you use camkeyd to bring up the task switcher, you still have to select the thumbnail afterwards. btw, from the photos that I have of the test N9 consumer device, I cannot tell if it has a camera button or not. I can see 3 silver coloured buttons protruded on the right. Looks like Volume up, down plus a power/lock button just below it. I really hope it does have a camera button. If so, we could probably get camkeyd-like daemon/app created for the N9 as well anyways. =)