Soon. Here's the beta.
http://www.microsoft.com/downloads/en/details.aspx?FamilyID=1fe7ea0f-3ad6-4137-8397-d412a3792c33
LOL...."a lot of people are switching to Macs". Funny. Are you kidding?
75% of Mac users own a PC. People don't get this. Apple doesn't WANT you to "switch", they want to SELL YOU ANOTHER DEVICE. Mac/IPod/IPhone/IPad....they all make you feel really cool, but they are not replacing anything you already own. If you're comparing your 9 year old PC to a new Mac....sure, your PC sucks. If you compare modern machines, PCs beat Mac in every department....including SECURITY. The reality is that you'll need connected services and be device angostic. That is where computing is going.....so spend hundreds and thousands of dollars on stuff, that's totally cool. The economy appreciates it!
I've said this 100 times. While your dated perception of MSFT may be (arguably) correct, the reality is that Apple and Google are now the bullies on the block.