Quark is King!
Just kidding, but I'm delighted that Quark 7 is UB, and I know from my own testing that it works a lot better than 6.5 with a lot of great new features. Of course, Quark 6.5 is a horrible program, and its PDF problems are a nightmare.
I used to teach InDesign CS 1, and I like the program's features, but it's bloated and slow, particularly on the Mac. Worse, CS 2 made it even slower. The real trouble with InDesign is that it takes a lot of training to teach all its useful features, and most people can't even use Quark's meager feature set to its fullest ability. Worse, InDesign allows you to do the same thing in multiple ways, which means that troubleshooting another person's document is much, much harder. And transparency is a truly dangerous tool on InDesign.
I hope that the Quark UB runs like a dream on Intel and PC hardware, and provides Adobe with a good example of what speed is. I'll be purchasing Quark 7.0 immediately just so I don't need to use Quark 6.5 anymore. Even in beta, it's soooo better than 6.5.