Do note that it looks big on a computer monitor, and it will become smaller on the N900. The sizes are just about right.

The unlock bar will be easy to press since it's a large bar, but if you're moving around, it wouldn't be so easy to press the notification buttons. And no, using the stylus is completely against the point of finger-friendly (remember, MAG is not making this just for the N900, but also for other MeeGo Devices.)