A correspondent, Joseph, tells me the professional version of CompanionLink 2.0 supports selective synchronization to a Palm device. (Sync only part of the database while at work, all of it at home).
They claim to support a wide range of devices and sync targets, including Act, GoldMine, Notes and Google Calendar. That makes me nervous; it's hard to see how they can manage all of the data model conflicts between so many different devices and platforms. A free evaluation copy is available, but this is not easy software to evaluate. When things go wrong with synchronization they can wreak havoc on irreplaceable data that may be difficult to restore (such as Exchange server data). The vendor does not have any open support forums; that's another sign that this software may not be trouble-free.
I'll ask Joseph to share his experiences.