What does 'HTPC' stand for? I've only ever heard 'Media Center PC' to describe that sort of appliance.
One small suggestion, assuming this is your site? There are a couple typographical errors on the front page text, plus I might word the top line differently. The site looks great even if you ignore these suggestions though, and well done creating this project.
- Manage your Htpc from everywhere -> Manage your HTPC from anywhere
- Using multiple applications to control you htpc? No More! -> Using multiple applications to control your HTPC?
- ...to controll them all -> ...to control them all
This project runs great on a raspberryPi (that is how i use it myself). I would recommend doing a git clone the get Htpc Manager running on the Pi. This makes auto-updating the htpc manager software a lot easier.