Chronos today released Personal Organizer 4.5 and Group Organizer 4.5, the latest versions of its organizer products. Four main features highlight the upgrade: a Mac OS X Palm conduit, customs lists of contacts that can be saved as vCards, a Mac OS X dialer for placing phone calls through a modem, and a multi-threaded Coaoa server included with Group Organizer. Both upgrades are available for free to version 4 users; 30-day trial versions are also available. Personal Organizer 4.5 sells for US$59.99, while Group Organizer 4.5 sells for $99.99 per user.