It looks very cool & and very promising...
I'll have to check it out...
Question: Have you considered putting any security (password) on the lock Widgets???
The reason I ask is that I have a Micasaverde Vera, and am ordering a second Aeon Labs Z-wave adapter, to make LinuxMCE a secondary controller to the Vera (the Vera has a service to control it from the Web for free). The Android app I use for that (Home Buddy) really has no security. You'd have to lock the app with one of those app locking applications to secure it. They don't always work so great.
Another suggestion is to look at the Android app, Smart Shortcuts, for ideas, or even going with making your app create actual app icons, rather than Widgets on the desktop, so the can be put inside a Smart Shortcut widget, sort of like a menu...
But Keep up the good work. I'll be sure to check it out some more.