Robert Scoble has a pretty cool video of a new wireless hard drive called the Digital Audio Video Experience aka D.A.V.E. from Seagate that looks like it will come in both 10GB and 20GB sizes that communicate and recharge via USB and the wireless capability comes via Bluetooth 2.0 andWiFi in the flavors of b and g. Battery life lasts up to 10 hours of continuous use and it measures in at 3.5 x 4.7 x .47 inches and 2.5 oz.
Definitely worth checking out. A software API on the device is available so software developers can write programs that use DAVE, which was "already used ... to build an interface for Symbian and Windows Mobile cell phones". We should see them on sale in May for around $150-$200.
Here is the official press release. I can see myself pocketing one of these and subscribing to URGE or another subscription sevice for my Windows Mobile device as well as synching the drive to my media center to watch 320x240 video streamed to my device at 768 kbps via its built-in media streaming.