creativepro.com - QuarkXPress 6.0: A Safe Upgrade in Dangerous Times
Found this link from Keisuke, a friend of mine from when we worked at Quark together. He's still there, as is evidenced by his design of the splash screen for XPress 6.0. As I've mentioned before, I also went back earlier this year to help them in the rush to release 6.0 for a few months.
I can't say too much (in detail) about Quark, since I recently worked there again, but I can say this: they are actually improving the code significantly, after years and years of talking about it. This is a good thing, and was spurred on partially by the need to support OSX.
On the other hand, they are moving almost all development to India, which may make sense for the bottom line, but doesn't make sense for American programmers, or for American dominance of the software industry. It is pretty clear that this sort of outsourcing will eventually cause us to lose our long-held lead in software development knowledge, which I still think is very unfortunate.