APB will be good to see more of, the videos shown at the GDC this year really piqued my interest. Sony's The Agency seemed similarly interesting but its casual PvE focus could easily grow boring. So when APB was announced with creative PvP matchmaking my future MMO hopes jumped ship.
I'm holding my excitement back because, well, it's still an MMO and MMOs typically bring subscription fees. If APB were one-time purchases I would it in a heartbeat. Hopefully its real world setting will allow for rampant in-game advertising to offset server costs; this is certainly one of those games were advertising would be perfectly at home and APB might even feel odd without any. We'll see!