Feels similar to NeXTSTEP-style "dockapps"; my desktop (running openbox) is full of 'em, and they're delightful. Something about squeezing as much functionality as possible into a 64x64 space just makes my desktop feel so alive and cozy.
It's obvious: The next step will be a combination of both concepts!
Nice. I want something like this but running in an iOS desktop icon.