I've been looking to develop neat home networking applications on small, low cost devices, such as a Rasp Pi. I think QT is a great language to develop with as well as learn.
For anyone looking to develop on the Rasp Pi, I am using Raspbian with QT Creator. I used this post and things work perfect:
I couldn't get it running with QT5 yet, only QT4, but I will post back with more success stories soon!