Thought this was a cool idea years ago, I should have developed it myself. I am glad someone did because for the beginner or even intermediate player it is a nice tool.
Basically you buy a Strat copy that has fiber optics on every note on the fretboard. You plug the guitar into your amp and USB and use the software to tell it the key and scale you want, a good way to get off of the pentatonic scale. The Fretlight then lights up the fretboard showing you the notes to play and highlights the root notes. Nice learning tool.
To take it a step further it also lights up chords and progressions. OR, import any tab into the software to learn any song, hell that works for me. Now, no way does this become your gigging guitar but rather a useful tool to learn new covers fast. I would find it useful in the studio also to take my time and different scales for the progression I have, right now if I don't remember it I have to look at something to remind me.
Check it out
http://www.fretlight.com/
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