My brother-in-law bought one for my 5 year old nephew (there are tons and tons of games designed for children in his age range), and I was able to use it a good bit while visiting over the holidays. I liked the thing. It's well worth the money, I think. But it certainly feels cheaper made and noticeably smaller than the iPad mini. It also didn't feel as smooth/snappy, and some apps just didn't look as good as the iOS counterpart. For the price, though, that's a nice device. Now, when the iPad mini retina comes out, I wouldn't touch one.
Sorry, can't help you on the apps search. I just was throwing in my thoughts on the device itself.