2008-03-12 Jens Alfke Fixed the conversion of window to layer coordinates. The old way didn't work in HiDPI. Thanks to Quincey Morriss and Nathan Vander Wilt for figuring this out.
2008-03-11 Jens Alfke Text, playing cards, and Klondike solitaire all work on iPhone now. (Regression: Klondike UI layout has changed, and is awkward on Mac now. Need to special case that.)
2008-03-11 Jens Alfke Added support for clicking the board to place new pieces. Go and Tic-Tac-Toe now use this.