I am following the news about this device closely. What I can see on the photos: the keyboard looks quite nice for speedy typing. There is quite some space between the keys which is a very important aspect imho. Also it looks like it is popping out of the surface below a bit, which also supports fast typing.
I hope the device will be optimized for fastest typing possible. Up to now I was not quite satisfied with most of those devices. I even did not quite like the N900, but HP100 LX was quite nice for typing actually.