I'm 21 years old and I use it for just about anyting my geekish mind can come up with :P
Nah, I use it as a phone, music player, camera, yet another something to mod and finetune to my own likings (did I mention I love the fact that it's got Linux? ) ...
And I'm dreaming of the day I can actually make time to start coding for it, so I can make up for the little things I still miss on an otherwise wonderful device!