Seems to be a price cut for this everywhere. Good deal for guitar users with XP, possibly not for Vista (unconfirmed).
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Good for XP, NOT useless for Vista
In XP, this thing was great. I upgraded to Vista, and now the outputs have an unacceptable pop and crackle. The Line6 forums are all abuzz about this problem, and there is no solution yet.
<edit> I heartily apologize. There was no solution at Line6, but I eventually ran across a fix. Unsurprisingly, Vista is to blame, specifically the power profiles on Vista. The fault lay in the processor power-state transitions. This works ok on Vista on a laptop if you select the "Always On" power state. (Actually, there's an occasional pop even then; if you disable power state transitions in your BIOS, I think you can get rid of them.)
http://line6.com/gearbox_plugin/guitar.html