If youve got the time, you can measure it!

Heres how it works: You set up a credit card, walk back a few feet, snap the picture, futz with the scaling, move the "calipers" on screen, accidentally bump them, start over... aaaaaand there we go -- a slightly inaccurate measurement!

The amazing thing is that its only SLIGHTLY inaccurate.

Great technology demo and a clever trick, but only useful in very specific circumstances. After all, how often can you afford an unknown level of innacuracy?

Nik FrieTeB about RulerPhone - Photo Measuring