Hi,
I'm almost sure that TUIO cursors should contain speed as we are not handling them (except when using the TUIO gateway, there we manage the cursors so they wont have speed, well they will but it probably will be 0). The TUIO reference implementation that we are using as the server automatically calculates speed and acceleration as well as registering the whole path. We haven't use speed or acceleration directly but it should be there (in general we use our own calculations so we can make sure that direction, speed and others are the same in TUIO input as well as mouse cursor, WM_TOUCH, etc...). In your application receiving TUIO data check the methods in the TUIO cursor you receive.
Good luck!