A vibrator that can be connected to an iPod is not a new product on the market, but since it is kind of rare to see one of these it's always good to talk about it. I think the vibrator + mp3 players buzz started on November'05 with the iBuzz and continues this year with the new OhMiBod.

There aren't many specifications about OhMiBod, it does what vibrators are suppose to do and works with plenty of MP3 Players besides the iPod, actually, it works with any electronic audio output source with a 3.5mm jack

The interesting part is the working mode - vibrate to the beat and rhythm of your music while you listen - I guess playing punk or Trance music while making use of the OhMiBod must be a nice thing.

Available at OhMiBod.com for $69 - even the price is symbolic ;P