Read the blogs!
http://wiki.simplemachines.org/smf/Upgradingthe help pages for 2.0 reside on the smf wiki.http://wiki.simplemachines.org/smf/Category:As_a_regular_user
I know SMF has been through a lot of changes. To see 2.0 final out, it's awesome! Thanks to all who contributed!
Now, how long till the svn is public access?