"Effective July 15/08 we're reducing the pay per use data roaming rates for the US & worldwide. While traveling in the US the current rate of $0.01/KB for BlackBerry Service Plans, Data Service Plans and other eligible data plans will be reduced to $0.0006/KB. The Flex Rate Plan rate will remain at $3/MB. For all other plans the US data rate will be $0.03/KB(from $0.05/KB) and the minimum chargeable amount will be rounded up to the nearest multiple of 20KB (previously 10KB). See rogers.com/roaming for roaming rates & other details or call 611 free on your wireless phone, if you have questions."
So it looks like you don't have to worry quite as much if you go to the USA and forget to turn off data roaming.
Is everyone sure that they use 1024K per M instead of 1000K per M like the hard drive manufacturers do? Because if they use 1000K, it works out to be higher than what all of you have mentioned so far.
it doesn't matter whether *they* do or not.
1. because they are charging by Kb, not Mb
2. because if they claimed it was $0.61/Mb, every internet user would assume they are following how Kb and Mb are measured. they can't just go and say "according to us 1Mb is 1000Kb." if they did, they'd have another PR nightmare, or mini-nightmare at least, when the first travelers received their roaming bills.