I've been playing with the treo and this seems to work about 60% of the time. When I have been roaming and have come back into my home area I'll push the app key then press my phone key. This seems to have the treo search for the home signal. If I am well inside my area it switches everytime. On the edge is where it is hit or miss on switching back.

Has anyone tried this? Does it work for you? Am I all alone here.....:embarassed: