The starfish is really cool! It moves very realistically. I just leave my PC and screensaver on and find myself checking it every once in a while to see where the starfish went. It doesn't seem to take THAT long for the starfish to start inching up the glass.
This is pretty neat. Hopefully Jim can expand on this and improve it (yeah, yeah, we customers are never satisfied and always want more
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I'd suggest:
1. True AI for the starfish, as you've planned.
2. The ability for the starfish to travel around anywhere on the 3D live rock and back and front glass (once the background is in true 3D).
3. The ability to drop a sinking chunk of food on the bottom of the tank and watch the starfish eventually find and eat it.
4. More starfish choices -- I would LOVE to be able to choose a purple linckia, blue linckia, orange fromilia monilis starfish, and maybe even a brittle star or serpent star (although I know these starfish move much differently, and faster).