I got one of these on Friday, so far I’ve tried RaspBMC, which works well at 1080p30 and it does airplay and can be controlled via an android or iPhone.
Wrote a couple of very basic scripts in Python, which seems easy to use, never used Python before. A lot of learning to do!
Next project is a temperature & humidity sensor/logger, just awaiting components!
Also want to build a carputer with WiFi, GPS, camera, etc, possibly a NAS to replace the Duo, and probably whole bunch of other things.
Another main project I want to do is build a cheap Synchronised Music Player System, like Sonos, but cheap.