Bis / bes
Not sure how much has changed between 7.1 and 10, but the fact that there's no more bis on bb10, doesn't bode well. Maybe it's like a placebo effective, but it seemed all a bit more secure to me.
If nothing else, the fact we're no longer getting compression on the requested data, using a bb10 will cost more per month. Having read up on cost per plan in Europe vs US, I'm shocked. Shocked!