Zooming is essential when you read comics. If you have the 0-9 keys on your remote control, it's really easy and intuitive, but how can you read comics with an Android remote control app?
Luckily, the ff/rew buttons are not needed when you're in slideshow mode, so we can use them for zooming: Just copy zoom-ff-rew.xml
to userdata/keymaps/
and restart XBMC.
Ironically, by the time I got it going, the android ran out of battery. This made it look like a remote control from the 50s ;)