Apple seems to have bought some keywords on Google including, most interestingly, “download windows 7.” That’s right: every hax0r out to download Win7 will see a little ad from Apple saying “Upgrading to Windows 7? There’s never been a better time to switch to a Mac. Find out why.”

Computerworld tested a few other keywords, including “buy Windows 7″ and “Windows 7″ itself and the ads didn’t appear. Clearly they are looking for a “different” type of customer.

Why are the targeting pirates? It doesn’t make a lot of sense but it does make sense for Apple to target folks who are on the fence about Windows 7 and could be looking to download the OS for free rather than making the total jump. Those same swing-users could be swayed to roll over to OS X given enough prodding.