I use my N800 everyday with a car mount and BT GPS. I have a selection of useful apps that I refer to frequently and I can honestly say I now depend on the N800 in my day to day life. With that said I spent the past day and a half trying to determine if I would be handicapped by the 3.5", smaller screen...

Since I depend on fast task switching from the touch screen I run most apps in a dang window that is less than 3.5" anyway.

So it all will depend on the GUI and how tasks can be quickly switched or if a task navigator can be accessed with one touch while a full screen app is open...

I have recently used a Qt app on the N800 that brings up a transparent touch screen overlay with a simple screen gesture. That would be superb if gestures were used through out Maemo 5 for task navigation.

(BTW, using the hardware button on the N800 to bring up open tasks or the home screen requires so much pressure it will cause the tablet to swivel on the car mount angling the screen so it can't be viewed. )

The number one thing that I think will affect all of us is not screen size, D-pad, stylus, or keyboard... it will be price.

@Nokia peeps...

Now that Maemo is on a high priced phone will it have a PIM suite installed or will this forum spend the next 3 months trying to explain to new or potentially new users why it doesn't...

Just wondering.