Not sure if this is a known issue to everyone already. Looking at the coordinates shown numerically in realtime for each finger, one would notice that the delivered coordinates (or the computer "perceived" fingers) do not necessarily match the actual fingers in action.
For example: posing the "german three" hand sign with the long-stretching THUMB, INDEX and MIDDLE fingers (and the folded RING and PINKIE fingers) as shown in this picture : http://4.bp.blogspot.com/_nn4b2gkHsEU/S3jmdfEsRVI/AAAAAAAAAfo/kJb0wdyKpts/s400/three1.jpg
The detected finger combinations that one could get from the realtime reading are VERY VERY random, which could be in the following in my test:
1. Index, Ring, Pinkie
2. Thumb, Index, Pinkie
3. Thumb, Ring Pinkie
4. Thumb, Middle, Ring
This problem occurs when posing the simple "PEACE" sign too, the finger pair could be of any combination very often, unfortunately.....
Hope that the team can address this and make the SDK more robust, as otherwise it is very hard to put this into a commercial products, Thanks.