text: I haven't tried it, but my friend has.  He's a Windows guy(so far), and he couldn't believe how fast it was.  It runs on the processors natively, so its pretty fast, but it's still windows :(  He's considering getting rid of his desktop situation and getting a couple more MacBooks.  But Boot Camp isn't limited to just MacBooks, but all Intel Based Macs like the new iMac and new Mac Mini.