I'm now sitting in Heathrow with no way to get .9004d onto an SD card and frustrated lol. v9.004b is still fantastic though - was playing Pokemon Emerald on the way here; with sound off (in-game saving works, and I don't have headphones, so might as well turn it off when I don't need it), and FS set to 2, it was hitting a constant 60fps.
One thing I did notice, which may or may not be present in newer versions was a little bit of lag. The FPS counter displays for maybe a frame every, what, 2 seconds? Every time it does, there's the briefest moment of jutter, which doesn't make the game seem slower, but does mean it looks like it's got a heartbeat. But as I say, this is on v0.9004b, not d.