CWmike writes: While the world focused on Microsoft's launch of Windows 7, Florida-based Psystar quietly launched Rebel EFI, a software product that should worry Apple a lot more than Microsoft's latest operating system. Rebel EFI allows users to run Apple's flagship operating system, Mac OS X Snow Leopard, on non-Apple hardware. Computerworld test drove the making a Hackintosh out of a generic PC with company's new software package and found a product that has a lot of homework still to do. Reviewer Frank Ohlhorst's final analysis: "Psystar's Rebel EFI [ a free trial is available ] is an interesting tool, but it is very limited when it comes to the selection of hardware that you can use. The company really needs to create a compatible hardware list and post that on its Web site — and it also needs to create some usable documentation. As it stands right now, you can use Rebel EFI to build a Mac clone, but unless you stick to relatively generic hardware, you will be disappointed."