A few things to know that will broaden your search:
1
) Most SH3 apps written for CE 1.0 will work.
(SH3 apps written for CE 2.0 and later won't, though.
) See this thread for some info on this:
http://www.hpcfactor.com/forums/forums/thread-view.asp?tid=13677
2
) Most apps written in Visual Basic
(with the file extension .vb, which is not processor-specific
), including many written for CE 3.0, will work if you install the eMbedded Visual Basic runtime files:
http://www.hpcfactor.com/developer/
3
) There is a build available now for the .NET Compact Framework 1.0 SP3 for CE 2.xx devices, which includes an SH4 version. This will allow you to run Pocket PC apps that were written for .NET CF 1.0 to work on the ePlate. See this thread for details:
http://www.hpcfactor.com/forums/forums/thread-view.asp?tid=12404&po...
A few developers wrote SH4 versions of their apps, including Ilium Software, whose H/PC Pro apps are available free for HPC:Factor members:
http://www.hpcfactor.com/downloads/ilium/
Search the threads here in the H/PC Pro forum using the keywords "HPW-600," "ePlate," and "Compaq Aero 8000" for other threads about SH4 devices. You'll find more ideas there. Note, though, that many developer sites for these old programs may now be closed, so you may have to search for them in archive.org. For example:
http://web.archive.org/web/20070210223624/http://tillanosoft.com/ce...
The download links there still work.
(Some don't because the download pages haven't been archived.
)