I have to say: thanks to rbtwhiz for answering some of the points about the interface and I look forward to seeing how it develops. Perhaps part of the concern comes from not knowing how much of the UI is complete at this stage and as you have pointed out there is still work to do. I missed the fact that both number and graphical input methods were implemented so thanks for pointing that out. I am concerned more about the size of the controls than anything else though ;)