BizTalk 2010 RTM code available in a 120 day trial version and developer edition

Grab the 120 day trial  here. And the developer edition from Microsoft Download, here It is not yet to find on MSDN … awaiting it unpatiently.  And is the MSDN version the same as the one on Microsoft Download?  And how is the developer edition licensed these days?  The License page still mentions a developer edition cost of USD 499,- … but that is for BizTalk 2009.