[bedoig]

Mine wasn't auto-rotating either, so I did a little digging in their forums. It seems the g-sensor implementation in Kinoma is not perfect yet, and many others are having the same issue. It might be a good idea to report the bug to their support department so that it can be fixed in future releases.

In the meantime, try this workaround posted by vw195 on the Kinoma forum:
Open another sensor-aware program in the background and then launch Kinoma. Sprint TV seemed to work for me, although launching just Opera in the background did not (which is unfortunate, because I almost always have Opera open anyway, but I never use Sprint TV).