ScoutSync: PALM synchronisation server by AetherSystems(http://www.aethersoftware.com). Works on Linux, Solaris and Microsoft-Windows.
Unicenter TNG SDO: PalmOS and Microsoft-Windows-CE software distribution server by Computer Associates.
IBM Mobile Connect 2.51(http://www-3.ibm.com/pvc/products/mobile_connect/index.shtml)
is a pervasive computing technology solution that
helps enable handheld devices such as IBM WorkPads, Palm, EPOC and Windows
CE devices to be integrated into Enterprise Solutions.
Other applications for PDAs you may find at
Linux and PDAs.