Now I have a remote control for my home!
I own an ISY-994i which controls my Insteon lights, Z-Wave locks and iTach infrared devices. With this app and the ISY's HTTP API, I was able to build a remote with buttons to control everything. Looks good, too! Feature requests: It'd be nice if there were a few more button layouts (directional pad +) and some way to show status on supported devices.