I'm thinking of getting a Blackberry Curve, but I'm confused about the options. I want to set it up as a wi-fi hotspot at the cottage so I can access Internet on laptop via Curve. I have no other options for Internet out there (have cell service though, so Curve should work). When I research data plans, I understand the plans themselves, but then there are three different add-on options for Blackberries that I don't understand, and in addition, the boxes are shadowed so they cannot even be selected. Do I have to order the phone and package before I choose one of the three options? And if I get the Blackberry social or Messenger add-on, does the usage affect my data plan?