Hal Landry has done an incredible amount of work creating a native Palm application to talk to a DSMLink ECU. We thank him greatly for this! He has provided install notes and instructions on the DSMLink user's support forum. I'm pretty sure this was done (at least originally) to limit distribution only to those with a registered copy of DSMLink. We'll honor this until he tells us otherwise. If you're a registered user, you can access his Latest Palm App thread on the support forum.
I will at least copy this section from his notes for those considering the Palm application on your own hardware.