I'm betting AAPL sells 55million iPods of all flavors this year. That may be a conservative estimate but with all such gadgets the winds of fate are fickle.
I am guessing though that this Vingle craze has just begun and the uses for those vPods will continue to grow in all sorts of crazy directions.
Using vPods as portable/rewritable/updateable training guides, tour guides, etc. People can download their dating videos, their tv shows/news feeds for the commute on the train/bus home. Pocket translators with the words, pictures, and audio for when traveling overseas.
And of course, that great mover and shaker of consumer technology: Pr0n!!!!!! Pr0ncasting to your vPod.