I hate bringing up an old thread, but I’ve been searching for a quick / dirty prototype tool, and was wondering if there’s been any new software developed recently for this purpose? I’ve looked at balsamiq but I would like to create something like this: http://www.android.com/new/videos/phone_final.webm
I could do this fairly quickly on AfterEffects, but there’s got to be a more specialized tool. (If not, I’m going to develop it! Heh)