I tried it on my Horizon box here in Switzerland with a Galaxy S3 and it works!
- different layouts, for instance one "simple" layout with selected key features
- shortcuts to favorite channels
- haptic feedback upon key press
- automatic detection of the IP address of the horizon box (or at least clickable list of devices seen on the network)
- clickable list of channels; would be awesome to have the right icons too! The easiest would be a (multi-choice) list of packages and countries to choose from.
For Switzerland, here are the lists:
and the icons: upc-cablecom.ch/en/television/channels/?packages=comfort®ionstyp=2
and the icons: upc-cablecom.ch/en/television/channels/?packages=comfort®ionstyp=3
and the icons: upc-cablecom.ch/en/television/channels/?packages=comfort®ionstyp=4
(sorry I had to edit the links because I'm a new user)
I can help extracting the stuff if you wish to implement that feature.