Inspired Instruments finally got around to producing the "Pro" version of the You Rock Guitar, but with a name change:
They're selling it for $1,000, so it's not exactly an impulse purchase, the way the original YRG was. If the tracking is better than what I've heard about the YRG, I'd be tempted, since I do a lot of non-guitar arrangements with VSTi's these days. It's got to be solid enough to be really playable, though, because I'm not going to spend a thousand bucks just to have to do the same note-by-note MIDI scroll corrections I do with my keyboard parts.
Colour me interested, even though this thing would be redundant to me being a keyboard player too.