No, PS is far more feature rich than Pixelmator. Pixelmator had a far better UI, OTOH, and is a pleasure to use compared to CS3.
CS6 UI reminds me of Light Room 4 which pales in comparison with Aperture. I'm sure you're aware Apple charges $79 for Aperture. I don't think Adobe got the memo with their bloated thou$and $ software suites and dingy interface.
New York based trademark attorney Martin Scwhimmer said Apple's approach was a "level of ruse" he has "never encountered."
Have to agree with Mr. Schwimmer here... Though I find Apple's penchant for Hollywood style derring do amusing, if true Apple's little charade strikes me as downright deceptive.