Creative admitted this week to shipping aproximately 4000 of its Zen Neon music players with a preloaded surprise for users. All 4000 or so players were infected with the Wullik.b worm. Creative posted the following serial numbers that were infected: 1230528000001 through 1230533001680
All of these infected players were shipped to Japan, and all other shipments have been held while Creative checks for other infections. Read the story here.
These kind of portable threats will emerge, since usb music player devices are developing quite rapidly, this incident with creative players being infected and put out to market is a bright evidence.