Hmmm. That's interesting. I was told that I would need a Data Plan and a Voice Plan, which is understandable. I went to the T-Mobile website and I didn't see the plan you're mentioning. However, I will be calling them this week and will definitely be asking about the plan you're talking about. The plans that I had thought about getting was the Individual Promo Plus Plan which includes the 1500 minutes + unlimited nights/weekends for $49.99/month. And then my Data Plan would be the Blackberry Unlimited Add-On plan for $20/month. And then adding on the Unlimited texting plan for $14.99/month. So, my total would be an estimated $85.00/month.
That seems a little high after what you've mentioned.