In response to recent questions/confusion, I posted an entry with links to the .NET 3.0 Beta 2 downloads — ironically a few days later on Friday (June 23), they released a new version labeled the June CTP.
So, to avoid being the cause of even more confusion, here are the links to the latest June CTP bits:
As a matter of practice, go to the new .NET 3.0 portal site (http://www.netfx3.com/), and follow the download links to locate the latest bits.