If it's as fun to use in practise as it looks in concept....
I have a feeling that this device will appeal to the geek brigade, the hardware compatibility will be worked out and someone will document how to put linux onto it, drivers will be writen and perhaps it might even will get it's own distribution that is tailored specifically to it. I wouldn't be surprised if it inspires websites and a community such as this one.
Unlike your generic laptops that vary in size, shape, internal components and so on. The OQO is one hardware specification with added drool factor compared to most laptops.
If it is indeed the next best thing since sliced bread, I will be ordering one and relegating my PDA to the cupboard with all my other gadgets. My poor MiniDisc player hasn't seen the light of day since I got an iPod.
Such a device should hopefully inspire some copycats, which hopefully are as cool. For example, something like a C series Zaurus, but a little bigger with an internal harddisk or a Psion netbook rethought a bit with, shrunk a bit with an internal hard disk, etc