It was bad timing for me. I sold my previous theme site so I can focus on .com themes. Only to find out a month later they suspended submissions. I later realized that it appears they have no intention of reopening it, but if they do, it's a long way off. I believe it's been closed for 6 months now.

As I mentioned, it was bad timing because this happened right after I sold my successful theme site for the chance to do some blogging and to design themes for wordpress.com. It turned out it was a bad move. Now I've had to start a new theme site from scratch (including starting with no themes) and then go back to wordpress.org and rebuild what I once had. Unfortunately this takes a long time. So far I've got 2 premium and free themes (a 3rd on the way).

Hearing stories like Sarah's post here, and also the one about Mike McAlister and now Sami Keijonen, make wordpress.com very discouraging.