One more puzzle game. I've got iPod4 recently. And I really was surprised with screen quality here. As result LastTap works also on retina display with perfect image quality.
I realy want to stop doing apps only for iPhone. Here is the first step. I made one C++ interface which describes all functions I need to create games. Then I implemented this interface for QT and for iOS. It was not so hard. Now I can develop game in QT Creator and then just copy/paste project-files into xCode project. As result I have QT-desktop version of LastTap. And the same game for iPhone. Only thing I couldn't implement for QT is sound effects engine.
Update: free version is available.