The VMDK to VHD file converter is available on their download page. This is simply a file conversion tool that will convert virtual hard drive images from VMware's VMDK format into the Microsoft's VHD format. It is a sector by sector copy operation from one format to the other. It will not make any modifications to the source image such as uninstalling VMware Tools etc... but it will leave your source VMDK un-touched so you can continue to use it.
They have used it to test and move VMware images and appliances into Virtual Server and Virtual PC. The only pre-requisite is the Microsoft .NET Framework 2.0. We do not have a linux version at the moment.
Check them out, here. And be sure to leave them feedback on the tool.