I'll cut through the piles of snark that I knew would inevitably show up on this thread and say I now understand why these guys got so much venture capital. This idea, and the previous one they had, while maybe not runaway successes, are damn clever. Yes, it's more social-such-and-such, but they are really taking some very unique approaches here, and with 40M in the bank it's clear they're going to keep iterating until they do find success.
There have been plenty of times where I've witnessed something that I wished I could've shared with a few friends. When I see something crazy happen, my first instinct is to tell someone about it. It's the equivalent of tapping a buddy on the shoulder and saying "woah, dude, over there. Look!"
If I get tapped on the shoulder by this color app you can bet I'll check it out. I've got 30 seconds.
At any rate, I find it disheartening to constantly see so many negative comments about everything color.com does. It smacks of so many sour grapes.