Hmmm... Apple has announced [http://www.rockpapershotgun.com/2010/10/20/hmm-the-app-store-on-mac/] an App Store for Macs. While RPS is wondering how that will undermine Steam on Macs and what Microsoft will respond with, I'm more worried about Apple pulling an iOS and locking down the platform. To quote Ron Gilbert [http://twitter.com/grumpygamer]
Conspiracy or tin-foil-hat talk? Discuss.Step 1: Mac App Store + 3rd party apps. Step 2: User option to disallow 3rd party apps for "safety". Step 3: [Force that option and] Remove that option.