The success of the Mac is the only thing that will encourage ports to the Mac. Developer familiarity doesn't seem to be a big problem with games. Most PC game

The success of the Mac is the only thing that will encourage ports to the Mac. Developer familiarity doesn't seem to be a big problem with games. Most PC games are written in DirectX, which doesn't have a real alternative on the Mac side. Similarly, the real novelty of the iPhone is the UI. The Mac UI is fundamentally the same as the PC. That being said, as long as Mac market share keeps ticking up a point or two a year, more developers will invest.