Just got an email.

http://www.handspring.com/promos/treo600_promo.jhtml

Man, data prices sure are expensive compared to SprintPCS...you'll get screwed if using PDAnet.

Cingular GSM Nation 250 250 min $29.99** 10MB-$24.99 $54.98
Cingular GSM Nation 500 w/Rollover 500 min $39.99** 10MB-$24.99 $64.98
Cingular GSM Nation 700 w/Rollover 700 min $49.99** 10MB-$24.99 $74.98