In the middle of updating the games I have tried.  If you don't have time then check out the YouTube vids (and then come back and check out all the info about Janus VR!).

• 30 x Oculus Rift Games (Part 1): http://youtu.be/0nA55kkJd6o
• 30 x Oculus Rift Games (Part 2): http://youtu.be/j4OEJbY2kxE
• 17 x Oculus Rift Games: http://youtu.be/8vOqHx1qOe8
• 15 x Oculus Rift Games: http://youtu.be/95wpwAbabw0
• 9 x Oculus Rift Games: http://youtu.be/_m_aDw7JKyo
• 7 x Oculus Rift Games: http://youtu.be/N9I1Yjg_hr4

A growing list of Oculus Rift games, tools, demos and other software to try when your unit arrives.  Keeping this list for myself, but others may find it useful!  Most of these are still under development and many are free too :)