Well, well, this gets interesting....
The new version of RockBand (and no doubt Guitar Hero, etc.) will support this little gizmo....

It basically allows you to connect any Midi keyboard or drum kit to the console (PS3, XBox360, Wii) and use it in the game.
Here's what the game guitar and keyboard will look like :-

A close look shows that the guitar has strummable "strings" and a button for every string at every fret.
The two-octave keytar has coloured zones for "simple" play but I believe it will have a pro mode that resolves down to actual keys.
Oh, and both can apparently be used to send midi to real gear too.
Yes, they *are* just toys/gimmicks but they're slowly getting better and closer to teaching the real thing.
