Definitely. I've been hoping for a keyboard for a long time.

IM will be easier, as will email.

Typing in the terminal will be easier as will be using vi (I hope the escape key is bound to something!)

And finally I'll be able to use gnumeric without cursing everytime the on-screen keyboard pops up and obscures 90% of the data I was looking at

I'm also looking forward to some location aware apps with the built in GPS - I always used to forget to bring my BT GPS unless I was travelling somewhere in the car and needed to use Maemo mapper.