The number one issue with bike lights is the fact that they're
easily stolen, a fact that has caused many bike light
manufacturers to designing them as cheaply and disposable as
possible. However, a group of two engineers and an industrial
designer in Brooklyn are taking an inverse approach with
their pricey, aluminum Blink/Steady bike light.  The
Blink/Steady solves just about every problem you've ever likely
encountered with a bike light(like having to turn it on/off) by
using an accelerometer and light sensor to turn and keep itself
on at night and off in the daytime. The issue of being stolen is
easily enough resolved by the fact that the light screws right
onto your seatpost.  Help these guys get their idea into
production with support on their Kickstarter page and for a
donation of $95 or more you can have one pre-ordered. That may
be a bit steep for a bike light, but you're likely to never have
to buy another one again, it's that good.  [via Wired]