Forget having to use a third-party service when you want a new cell phone but haven't quite worn down your current one to its teeth — AT&T is considering a cell phone trade-up policy for customers (where were you last Summer?!).
There are, of course, catches like the traded-in phone must be under two years old and in good condition, and that subsidies will not apply (so maybe the iPhone 3G trade-in wouldn't be as great).
For someone who likes to have the latest and greatest, and usually has a working device when she wants the newest version (grumbling at you, TiVo HD), this sounds great.
Of course, for all the catches it could entail, maybe it'll stay easier to keep buying on your own schedule. What do you think?