Intertextuality in T-Mobile ad

This is part of a series of ads by T-Mobile that features a representative of T-Mobile (cute girl in pink dress) as well as one guy to represent AT&T (older traditional business suit guy) and another to represent iPhone (young dude). This entire campaign is a reference to the older "I'm a Mac; I'm a PC" ads that Apple used to do, which was then referenced by Windows in their "I'm a PC" ads, and now we have these ads comparing T-Mobile to AT&T. Slightly confusing, but it's been shoved in our faces so much by now that surely everyone gets the reference and is "in on the joke," thus the T-Mobile ad accomplishes what it wants.