PocketMac is crappy, crappy software. I would recommend that you find something, anything else. I have spent two days trying to recover my 500+ Contacts and extensive Calendar entries destroyed by this product. In my case, I was moving from an old Blackberry to a Palm Centro. Instead of asking me about conflicts between my Mac iCalendar and Address Book and the data on the Blackberry, PocketMac silently "resolved" the conflicts by dropping addresses and phone numbers on both the Mac and the Blackberry. In porting from the Blackberry calendar to iCalendar, PocketMac combined years (!) so that I had appointments from 2007 mixed in with appointments for this month.

I did find out a useful thing: if you have tons of Contacts, more than can fit on a SIM card (like me), you can go to an AT&T store and they will use some machine to port your Contacts directly from the Blackberry to the Palm, without having to first get everything onto your Mac in some format and then using PalmDesktop HotSync to get it onto your Palm.

Good luck, you'll need it.