I get a reasonable number of questions about supporting Virtual PC 2007 from Windows Embedded CE 6.0. We’ve just published a CE 6.0 Binary BSP for Virtual PC 2007 on the MSDN Code Gallery site. Note that this is not an officially supported BSP (don’t phone product support, the only support mechanism will be through the Code Gallery discussions page).
The Virtual PC BSP ships with a Virtual Hard Drive (.VHD) and Virtual Floppy Disk so you don't need to create any boot media before starting to use CE 6.0 and the Virtual PC BSP.
Here’s a link to the MSDN Code Gallery CE 6.0 Virtual PC BSP project.
Virtual PC 2007 can be downloaded from here.
Look out for a video showing the BSP “in action” coming shortly.