[TAG] an address book/ diary programme ...

[Jim Jackson]

Hi, all

A friend is looking for recommendations for cross platform software,
ideally linux, MacOS-X, Microsoft - "an address book/ diary programme that
can be synchronised with other computers. Ideally this would work like the
old Psion one, where it can be synchronised automatically with Lotus
Organizer or Microsoft Outlook on an office computer."

Any sage advice?

Jim