The WSJ has a quick roundup of the tablet space with some interesting tidbits. One, HP let Steve Ballmer "show off" their Slate computer at CES but waited for Apple to announce pricing so they could tweak their pricing to make their product competitive. They compare to the $629 3G iPad model, so it is assumed that the HP device will have 3G.
Interestingly, since the device will be running Windows 7, it will need PC internals, probably those of a Netbook (Intel Atom Processor) which typically run at higher prices than the ARM chips that the iPad is based on.
The Journal also mentions that Microsoft is still hammering away at their "secret" Courier device which