I'm considering the switch from BlackBerry to the Atrix when it is released, and have a question about data plans. Currently I have an unlimited BlackBerry data plan (which doesn't even reach 100MB of data usage per month). When looking at the available non-BlackBerry plans, they have the DataPro plans, one regular and one Enterprise. Will they actually block access to my Exchange server at work if I don't subscribe to the more expensive Enterprise plan?