This is a comment, not a question. In general I'm extremely happy with WordPress.com. But this upgrade to 3.1 is very disappointing.
The upgrade has introduced not one but two significant bugs. They relate to inserting links:
and to changing layouts within a template:
This would be acceptable if they occurred only with little-used templates. But they occur with 2010, which is a WordPress template and is the default template for new blogs at WordPress.
This might be acceptable if it were only with little-used browsers. But the bugs occur with FF, IE, and Chrome.
On top of this, the blog entry at:
blithely asserts that "the lucky users of WordPress.com are automatically included in the beta testing."
Sorry, but my blogs are production sites, not test sites. Beta testing at WordPress should require an opt-in, or allow an opt-out, if changes are liable to introduce bugs in important templates across multiple browsers.