In the clouds or in your pocket

USB memory sticks have shot down in price and shot up in capacity. For $60 I bought a 16GB stick which fits all my documents in and more.
Laptop magazine reports in their January 2009 issue that USB 3.0 is on its way. This promises much more than the 480 Mbps speed of USB 2.0. How about 5 Gbps? Jeff Ravencraft states that "this would allow users to transfer 27 GB high-definition movies in just 70 seconds, as opposed to the 13.9 minutes that would be required with USB 2.0".
When does this roll out? Early 2010...
It is tempting then to think that you can carry all your documents around with you in your pocket. But you lose the power of collaboration that way.
Back-up yes, sharing huge files, yes. But let's keep our documents up in the clouds.