To purchase a banner ad expressing a sentiment is only a tactic. ...and a tactic toward what end is completely unclear to me. If I were an Apple shareholder I would expect to receive little benefit from Adobe sending Ars a few buck for a banner ad that doesn't indicate a commitment to creating more effective apps for Macs, phones, etc. that Adobe has been in past.
EDIT: And now that I visit http://money.cnn.com/ I discover that they're throwing money for cnn banners too.
EDIT2: Sorry, I did not click on the banner (never feel inclined to on any banner ad). Which reveals the punch line:
The banner actually means, "We love Apple... but... (their behavior is unacceptable)."
To be fair, it only got really bad when I implemented Google Maps' 3D API for AS3, but even with that, it is still silky smooth on Windows. Needless to say, I am watching the progress of CSS3 & JS/Canvas as they becomes a more viable alternative. At the very least, it can be evenly slow across all platforms ;)
Then, there have been several benchmarks released recently showing that Flash is faster than HTML5's canvas for drawing, both on desktops and mobile devices.
So I think your comment isn't exactly fair, or at least it deserves some qualification.
(Note: I am not an Adobe apologist. I barely use any of their software, and have no personal stake in their survival. I'm just seeing Apple spreading a lot of FUD and that upsets me as I've been a big fan of the company.)