I did a bit of searching but could find the answer to a few basic questions:

Q1: Where is the Palm Profile/Backup data physically hosted; with Palm (I assume), the Carrier, or at the location specified by "Profile Address" (I hope not).

Q2: Is there a detailed description of exactly what personal/user data is stored or mirrored off the phone?

Q3: I understand I can hard reset and provide new profile address to "start over". Under this scenario what happens to old profile data. Does it sit out on somebody's server forever?

Q4: Is it possible to have more than 1 palm profile per phone? E.g. If I hard reset and create a new profile, can I later hard reset and go back to the original?