The story around 64 bit
There has been a lot of talk about whether or not a 64 bit installation is supported or not. Well, the answer is a vehement Yes! Not only that but more interesting is the fact that the SKU's are available for Beta2 with both 32 bit as well as 64 bit builds. The 64 bit builds support the AMD, Intel as well as the Itanium architecture variations.
So go ahead power up that 64 bit server, dump in SQL 2005 and full steam ahead with MOSS 2007 Beta2