Looks like hell froze over last night. Adobe Photoshop Elements is finally on the Mac App Store. To be fair to Adobe, it’s great to see the company release this product in this manner, because it’s useful, affordable and therefore certain to be useful for a large number of Mac App Store browsers. And while Apple hasn’t pushed the Mac App Store as the only way to install software (unlike in iOS), you can bet it will become a de-facto default for anyone but tinkerers over the next year. In other words, where the future of Mac software sales is concerned, you’re on the App Store or you’re nowhere. Before today, Adobe was nowhere. Today it isn’t.

So, how about Office, Microsoft? Or are you prepared to just let the iWork apps RONCH your Mac marketshare?