At WINHEC in Los Angeles today, Bill Gates announced that Windows Server 2008 will be the last 32-bit OS Microsoft develops, as it fully embraces 64-bit computing.
Windows Server 2008 will still be 32bit. I think MS should make it 64-bit only. Vista being heavy, no doubt that Windows Server 2008 will also be heavy so better it be in 64bit, sp that the 32bit ppl dont complain like they are doing for vista right now with the low configs.