When John Kaster
of CodeGear (formerly Borland) came to Milwaukee last year, he showed a demo of some software running on a Pocket PC (PPC). The cool part was he was working on the actual PPC device itself but broadcasting the PPC screen to the overhead projector through his laptop.
I checked with him this week as I'm doing more work in this area now, and he told me that the free tool to get this done is called ActiveSync Remote Display. It is part of the Windows Mobile Developer Power Toys, available from Microsoft. I also tested it this week, and I can report that it still works with Active Sync 4.2.