PSN's best cure for insomnia.
Now, I don't want to be too negative so I will explain, Flow would make a great iPhone title. If I had literally nothing to do, and was looking for some way to kill 5-15 minutes, Flow would do alright. I could boot it up and occasionally think, "oh that looks neat," then shut it off soon after and not care about it beyond that. If the mobile version had custom soundtracks that would make it even better. The problem is that I didn't buy a mobile title, I bought it on the PS3.