Originally Posted by Mark Rejhon
Actually, web browser will be your #1 data destroyer, because BlackBerry pre-compresses attachments. So that 100 kilobyte PDF file becomes a 5 to 15 kilobyte text file and you have the "More" system with attachments which downloads in 2 kilobyte chunks at a time.
Because of this, I think most BlackBerry users use up about 10 times more bandwidth through web use than attachment use.
If you don't do any surfing, then 5MB plan is plenty for light use.
But I say, play it on the safe side and go for the 20MB plan for now. However, you might be making an error -- you do not want a regular data plan, you want a BlackBerry data plan, which are priced differently than Cingular's regular plans (I am not aware of a 20MB BlackBerry plan, so that is why I am asking if you are looking at the correct Cingular plans).
Thanks for the insight. I'm looking at Cingular's website which has an "Xpress Mail With Blackberry Unlimited Plan" for $49.99, with a $36 one time activation fee. Is this the basic data plan that I would need in order to use a BES/MDS host like Mailstreet?