I just registered with wordpress.com, actually only to get an API key for using Akismet on my wp installation.
However, I cannot access the dashboard or my profile. Whenever I click on any of those links (or my username at the top of the page) I always get the page for creating a blog (“Get another WordPress.com blog in seconds”).
Firstly, I don’t really need another blog on wp.com. But even if I try to create it, I just get the message “Sorry, that blog is reserved!”.