having watched this control since version 2.0 when it was completely free, I must say you did a great job - the current feature set is awesome and probably one of the best calender & scheduling controls - I have a feeling at one point you will reach a 'saturation' point and sometimes too much of a good thing is not too good, (may get too confusing to use and work with)
so far the control is brilliant,
well done!
Hakan