Yep, I think that pretty much defeats the purpose of the PDA install. I have given up on the palm install for now. I just do not see the hardware or software support. Some of the Pocket PC PPC stuff is pretty promising. You can now get some of the older PPCs used for as little as you could a palm. This Thread is pretty interesting.
Pocket PC-based carputer idea.
The fast startup time and no need for shutdown controler is the big advantage. Also, I think the overall cost would be cheaper.