Handtops.com has an in-depth review
of the OQO with a lot of screenshots.
The conclusion is, unlike of what we've read elsewhere, a very positive one:
The OQO is a very pleasant device to work with and use. The screen is very bright, keyboard is very usable and the device is comfortable to hold with two hands. The speed of XP and it's GUI is good, but don't expect desktop quality performance. Keep in mind as well that with desktop quality performance comes desktop size, heat, power drain, etc etc. And I have yet to see anyone take a laptop out of their jacket pocket or bag and proceed to check email, directions, etc. The OQO team has made a beautiful product that will truly begin to change computing as we know it.