Worst case your BlackBerry turns in to a smart phone, no email. The phone and web browser should be able to still work as the patent issues involve the push email. If you listen to a lot of people on this forum, the realistic outcome is almost nothing to the end consumer. RIM will most likely have to shell out a truck load of money to NTP. Who do you think is going to pay for that in the end? We will probably pay an additional premium for both the device and the monthly service.
Disclaimer: This was just my opinion, I could be completely off-base.