Apparently, the intention from Microsoft is to release its long-awaited Windows x64 in April. Now, if you have been into computers and IT for as long as some of us here, you will know that promises from Microsoft about release dates are... well let's just say pretty shady. Windows 98 was supposed to come out in 1996, you know? Anyway, hollow promise or not, Microsoft is sticking to the story that April will be the time that this will happen.
"We are locked on 64-bit...You should start [tailoring] your applications to 64-bit in a native way." - Jim Allchin, Microsoft's senior vice president of platforms.
Early April should see the release of the 64-bit workstation OS, with the server version following in late April.