It's actually not a guitar at all, but just a pickup/soundmodule combination you can add to just about any guitar. Very fun, and quite useful to one friend of mine in the studio, it helps him get all kinds of different guitar sounds without having to buy 20 guitars.

edit: Roland no-frills Page is here:
http://www.rolandus.com/PRODUCTS/hardware/vg88.htm
Item sold here:
http://www.musiciansfriend.com/srs7/search/g=home/detail/base_id/42783