It's funny, because the very next day after I created this thread, I got my first bill.
I used to own a BB 7250 a few years back with Bell, but had unlimited back then.
Anyways, I used to only use my blackberry for IM, email, and facebook. Out of the 500MB, I only used 7000kb, only 1.4% of my allowable data
.
So now I'll just email away and add more push email accounts
...
What are some really data heavy activities to stay away from? I'll save those for my WiFi zones. ie. Youtube?