I purchased the Mark/Space's Missing Sync for the palm treo (I realize this isn't for the Palm, but is pertinent--please read on). Not only do their products not work, but they didn't offer a refund after proving it. After noticing duplicates in iCal and AddressBook and appointments being removed after syncs, I contacted their customer service. After months of running third party programs and sending logs they finally said it wasn't their software. Instead it was the Apple "SyncServices" that was buggy (which... read full review »