Daring Fireball: ★ On the Upcoming Photoshop for iPad

the mistake Adobe made was not precisely setting expectations for the initial release of Photoshop for iPad. When Adobe described it as “real” Photoshop, what a lot of people heard was “full” Photoshop, and that was never the plan

Exactly. I’d actually say that Photoshop for iPad should not be the same as the desktop variants.

The engine should be the same but the implementation should be built on—and continue to build upon—the inherent capabilities of iPad.