How to reproduce:

1. Open attached project
2. Build to iOS and run
3. Make some shapes without lifting finger
- Note how every once in a while the green lines get a red cross on them
- The red cross means that the touch system has reported a stationary touch event, even though there was constant movement
- Input handling has been improved in 5.3.0b5, so the issues with touch input events should be less of a problem. That said however, some touch events still fail to arrive when they should. Apple was contacted and should be aware about this issue. In the meantime we're doing what we can from our side to reduce missed events.
- What can be done from the user side is to increase the performance of the code to leave more time for the processor to gather and process touch inputs. For example having loads of lines instead of one polyline has a lot of overhead when drawing.