I don't have any plans on buying it, as it doesn't work into my budget. I already have some lights that work fine for general road use. Eventually I plan on fabricating some high powered LED's on my own for riding on trails and such.

Mainly just curious. 900 Lumens seems like a lot, at "0ver 3 hours" and under one pound including battery. Trying to get that sort of power over 3-10 watt LEDs without beefing up the batterys would sound implausible.