Question: Wordpress 3.0, WPMU and WPMU DEV, oh my!

Hey There,

I just signed up with you guys last night and I'm interested to get the official word on what is happening as I tried a search but didn't run up on anything recent. I know that the 3.0 beta was released overnight and as such I'm interested to know what the future holds. Is it still worth running an install of a WPMU site this weekend and will it be a simple upgrade as many of the older posts suggested? Also will all of these plugins/themes transition well to 3.0 to the best of your current knowledge?

Thanks in advance,

Daniel McClure