Digital Insider #23
Wizards have now announced that they have released the full version of the Character Builder which can be downloaded. While subscribers will have access to all 30 levels of character options and generation. Non-subscribers could still take advantage of its new content but only up to 3 levels.
They are also aware that the Builder is not without its flaws and so have setup links to address the issues.
D&D Character Builder FAQ
D&D Character Builder Known Issues list
Any bugs should be reported to here
Finally, if you want to know what has been included in this version of the Builder, you can check at the Included Sources list.