As a user of Photoshop since 2.0 on the Mac, a user of most of Adobe's other products since they were owned by other companies I might offer a bit of a different take on this:
Adobe used to be a valued partner both in business and spirit for Apple. Both companies grew. Apple maintained much of its entrepreneurial spirit. Adobe didn't. Since the early days, Apple has transformed numerous times in numerous ways. Apple's newest direction indeed takes it more towards broad consumer 'data ubiquity' devices much like what Ford's did with cars. That doesn't mean they are abandoning the Mac "truck" (to use Steve's analogy) line, but that line is mature.
In the same time, Adobe has done about a millimeter beyond porting their software to different architectures and platforms. I've watched them do nothing year after year. I like the heal brush, and I use it occasionally. I like the increased integration of pdf/illustrator. To be fair, InDesign is nice, but largely unrealized and unpolished. Is that 15 years of development? When Adobe was a bright star, the applications were written by teams in the 2-digit range. Adobe has adopted the Microsoft 4-digit development team strategy, and it shows. Watching Adobe's fit about Apple's (good) decision regarding flash was simply sad to watch, and I knew how bad things must be in SanJose.
Today, I dread launching any Adobe product, especially on anything less than a 8-core Mac Pro. I use it when I must because its the mortar between the bricks.
What Adobe doesn't understand is that today, to write a Photoshop killer, an Illustrator killer, even an InDesign killer is possible and Adobe's monopoly stranglehold on the graphics industry has almost decayed completely from a technical point of view. If the merger happened today, I'm afraid Apple would have (superior) replacements available quickly. I look forward to these. People will migrate easily, and then the inevitable; some Windows-users will actually switch just to get them, and Apple gets stronger. (If this seems like a fanboy fantasy look into the history of Safari/webkit, Final Cut Pro, and Aperture.)
I already miss the old Adobe, I won't miss the current husk that it is now.
Suggestion to Adobe: instead of merging with another bloatware company, consider focusing on efficiency, hiring some imaging-technology innovators and axing the old guard.