Today the weirdest thing happened. I got service on my iPhone at L'Enfant Plaza metro station (underground). Generally no other service except for Verizon is supose to work inside the metro. I was listening to my music when I got e-mail alerts. I was on the green/yellow platform waiting for train toward fort toten/greenbelt. Total of 3 bars and I was on the edge network. Does anyone know if ATT is expanding their network in the metro stations?