In the past couple of weeks I've seen/heard the following ads:
Virgin Mobile unlimited Android on TV
VZW Android on TV
Sprint Android at movie theatre
AT&T iPhone on AM radio
T-Mobile Android on TV
The last BlackBerry ad I remember seeing was an AT&T billboard on I-480 west near the W130 exit in Cleveland about 1 1/2 years ago. The device pictured was the 9700.