I actually don't want an iPhone; I'm an Android gal

but...this will make my phone carrier stronger in the market, and there's interesting changes coming concerning plans. It looked for awhile that T-Mobile was faltering. Getting the iPhone should help.

T-Mobile Finally Getting Apple iPhone in 2013

What I found interesting in the article for 2013:

Legere said that T-Mobile will be eliminating subsidies to customers in 2013, making users buy their phones at full price and without a contract. Currently most U.S. carriers offer phones with a subsidy, paying for part of the phone but locking customers into a contract with monthly data and talk fees. For instance, today most smartphones cost around $199 with a subsidy, though their retail prices are a lot higher -- say, around $600. With monthly bills of around $50, carriers are able to make the money back.

T-Mobile will offer cheaper data plans or value plans, and also monthly plans for paying off the cost of the phone. It will also allow customers to upgrade phones when they want. Legere mentioned offering the iPhone for $99 and then allowing customers to pay off the rest in monthly increments. Currently, T-Mobile offers unlimited 4G data plans for considerably less than its larger competitors do.