64-bit Windows has been around for around four years now. Some companies have realised that every CPU sold today is 64-bit (though, it's disappointing that most manufacturers, like Dell, will only ship the 32-bit version of Windows with your 64-bit CPU). Adobe hasn't realise they've been left behind in 2004 though.
Well here's a great reason to upgrade to a 64-bit operating system: NO FLASH. Adobe doesn't make a 64-bit version of Flash.
Stick it to them: boycott a Flash website today!