Do not was time on the old stuff!
Well, OK, it may make sense to finish Your current project.
But after this, have a look at the new versions of Windows CE (6.0) and XPe FP 2007.
Windows CE is now totally integrated in VS 2005 and brings a new process model going beyond its former limits. With respect to XPe quite some very interesting features like different disk protection machanisms, EWF/HORM integration, command line build tools etc. are out now.
With the eval versions all can be tested for free.