Hi, I'm the primary line (and only smartphone) on a Family Plan with my parents, and am eligible for an upgrade. I have a BlackBerry Pearl Flip and want to upgrade to the iPhone. My father (who is frequently mistaken about these things) said that an iPhone will cost $29.99 more per month than we are currently paying. But we already pay $29.99/month for "Email & Web for BlackBerry," as it says on the bill, so won't it be the exact same for an iPhone? Or does the iPhone come with additional monthly charges beyond the $29.99 I pay for my BlackBerry? Our current base plan is Nationwide Talk FS 700, in case that matters. Thanks in advance for any info, and sorry if this is posted in the wrong category!