No, a beta hasn’t been released just yet, but there’s an interesting post over at the IE Blog. It’s possible that when the IE team said they were listening to developers, they weren’t joking.
Essentially the post says that Beta 1 (don’t know if it will be available to the general public) will have PNG alpha transparency, and fixes for the Peekaboo and Guillotine bugs. Now I know I will be coding around these bugs in IE6 for years to come, but it’s a nice gesture.
It would take a bit more than that to prise Firefox away from me, but it’s encouraging none the less.