An interesting read, & an idea that I really thought would've picked up long before now. Looking at the list of companies who've signed on to work on this concept leaves no doubt that the concept has grabbed the attention of some important people.

"Enter U3. A company formed by USB flash drive makers M-Systems and SanDisk. The two companies, independent minded U3 and a vast consortium of other USB flash drive companies and software developers are betting that consumers will be interested in turning a standard flash drive into a 'personal workspace'."