This little guy will talk directly an Arduino
http://www.kickstarter.com/projects/254449872/pixy-cmucam5-a-fast-easy-to-use-vision-sensor
Please do not cross post - (I propose to remove this thread and leave the one in robotics)
Sorry---
But I thought it was cool. Incidentally, I see no problem with posting in 2 forums. I do not look at all of the forums....
and I want to know about important developments, so I'm just doing unto others....