Updated 4:28 p.m. PST to reflect that it's T-mobile's ad campaign, with no Google involvement.
Platform-A President Lynda Clarizio estimated the campaign will reach 81 million people when it runs next week, according to the article, which quoted an unnamed source as saying the ad campaign will cost about $1.5 million.
"The goal for T-Mobile was to reach as many people as possible in a short period of time," AdAge quoted Clazario as saying.
Google said the campaign is T-Mobile's and it's uninvolved in the marketing effort.
The T-Mobile G1, a version of an HTC phone called the Dream, is the first phone to use Google's Android operating system. The phone went on sale October 22, but future Android phones are expected in 2009 from other companies including Motorola, Kyocera, Samsun, and LG Electronics.