Played around - first tests.
(RAW video, no MLV)
-768x400 continous
-864x450 recorded 83 frames (second run did 245 frames

)
-960x500 recorded 75 frames
...
Card I used was Lexar (Premium Series) 32GB 200x (Class 10).
Maybe you can get better resolution with faster card...
Notice: When I turn on camera and record directly, sometimes 768x400 mode crashes after some frames. I think the problem is that the SD card is not warm enough....
So overall I can say it's nice play around, but nothing I can work with right now...maybe with some faster SD cards

But still...NICE JOB! Thanks to the developers

-> UPDATE: RAW VIDEO (MLV) works on the 1100D ! You just got to take "Test mode" OFF, it even plays back the mlv files! Can record 960x500 continuous with fps override changed to 20fps...
again: maybe my card is too slow, I think you should get 960x540 24fps continous recording, because the 1100D has the same write speed as the 60D/600D/550D/500D...right?
https://docs.google.com/spreadsheet/ccc?key=0AgQ2MOkAZTFHdFFIcFp1d0R5TzVPTVJXOEVyUndteGc#gid=5