I have an F100 (GP2X), holding off on the Wiz until I see how the screen tearing issue works out, it's a little niggle but would drive me nuts. And I already have my F100 until the Wiz is 100% so the wait is painless.
UAE4all on the F100 is very good, plays just about everything little or none frameskip.
Handheld 8-16-32 bit fun!