Man, they can virtualize ANY thing these days!

http://www.gizmag.com/virtual-jeff-e...mmy-bar/41249/

The Virtual Jeff is not a mechanical vibrato system, but an electronic
one. Players use it like a traditional whammy bar, but digital pitch
control is used to massage the output for pitch-perfect, error-free
shimmers, dips, dives and squeals. It can be retrofitted to almost any
guitar, including acoustics and basses. "As long as it has a pickup (or
any kind of analog signal output), you're in business," say its
creators. Players could even have several instruments "Jeff-ready" for
quick swap-outs from one to another.

Details on what makes the Virtual Jeff tick are a bit thin on the
ground, but we can tell you that the device is cabled to a floor control
box about the size of a stomp. Signals from pickups on a host guitar are
registered, combined with data from the whammy bar unit, and everything
is run through a digital processor and then the digitally whammified
sound is output €“ all in real time.

"Virtual Jeff is a 'high precision' pitch controller," Peter Walker of
Fomofx told Gizmag. "This, at first, seems technically trivial, but a
simple analysis of what 'high precision' means in this context shows
that it's quite a challenge.