[ThinkDifferent]

The article only mentions one "guru" - Mark Pilgrim - who is upset that Apple hasn't published the latest source code for the kernel.

He's more concerned about proprietary data formats, and he has a point. Apple is reasonably good about using open formats, but as the iTunes store shows they will go for lock-in when it suits their purposes.

[coconutt2000]

as the iTunes store shows they will go for lock-in when it suits their purposes.

iTunes support for the open audio formats is what matters. iTunes Music Store DRM is a business necessity, but iTunes doesn't lock out content from other sources that don't use DRM.