Originally Posted by SchmutzBerry
Mark, this 10 kb 50 cent increment....does that simply mean at the end of the trip they'll round it up to the nearest 50 cents? or does it mean every time i send a 2kb message it'll cost me 50 cents?
Probably somewhere in between. If you send multiple messages in a short time period, it'll count inside the same 10 kilobytes. However, if you lose reception and get back (BlackBerry reconnection), the data meter probably starts over again. I don't know what the conditions are, like antenna-tower changes, roaming carrier switchovers, timeouts in XX minutes or hours, reception loss-and-gain events, blackberry poweroff/poweron, etc, or such, but there's many situations where the data meter is automatically reset for the 10 kilobytes increments. The net result is some of your messages will be 50 cents and other messages of yours will just a few pennies each, it will vary depending on the conditions.
Do NOT VOUCH ME ON THIS though -- but this is an educated hypothesis based on my understanding of how data measuring works.
You may unfortunately be right it may be the worse-case scenario, but I cannot say for sure.