I happened to notice that the new Dingoo A380 handheld game console will use the Ingenic 4755 at 500 mhz. I am pretty sure with its low space tolerance , they are not going to be using a fan so I don't think the cpu gets hot. Maybe we can consider it for the YA? it will also have a 400x320 screen, 64MB RAM, so it is similar to what the specs look like for Ya right now.