Hi Will, thanks for reporting the touchesMatchingPhase to Apple to get it on their official bug list. Maybe that will help give it a better chance of getting fixed in a Mavericks update.

re:
> IIRC, QT requires licensing fees for commercial use.

This used to be the case prior to Qt4.5, but with the 4.5 release in 2009 they added an LGPL license that allowed commercial use of Qt without needing to purchase anything.


> Also, I remember wxWindows/wxWidgets being pretty good, and it's development looks to be
> active, but nowadays there are a lot of competitors which may or may not be better.

I evaluated wxWidgets back a while ago, but for my particular targeted use then of trying to use their WebKit integration I ran into an awful lot of instability in that particular area.

- Michael