I paid for some Final Fantasy re-releases for Android as well as Might & Magic: Clash of Heroes. I don't want to buy them again for PC (if they are even available).
There are Android games that are equivalent to browser flash games, except they perform better and have better music. I'm mostly thinking of the thousands of tower defense games out there.
So some little free project that lets me play the games I want and doesn't cost me anything except a little bit of my time sounds great.