Exhibit 99.1 EXHIBIT 1 - JOINT FILING AGREEMENT Joint Filing Agreement The undersigned hereby agree that the Statement on Schedule 13D filed herewith (and any amendments thereto), relating to the common stock, par value $0.01 per share, of InPhonic,...Joint Filing Agreement • August 28th, 2006 • Goldman Sachs Group Inc/ • Security brokers, dealers & flotation companies
The undersigned hereby agree that the Statement on Schedule 13D filed herewith (and any amendments thereto), relating to the common stock, par value $0.01 per share, of InPhonic, Inc., is being filed jointly with the Securities and Exchange Commission pursuant to Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended, on behalf of each such person.
