The Atlanta Journal Constitution reports that the newspaper's local airline Delta will put Wi-Fi in planes starting next week: Just six planes will be equipped initially with Aircell Gogo service, which costs $10 for flights of less than 3 hours, and $13 for 3 hours or more. A total of 10 planes will be wired up for wireless this year, as opposed to the 75 that Delta had hoped to have ready to go.
The J-C says that initially, New York-based McDonald-Douglas MD88s and Boeing 757s will have the service. The airline told the newspaper that they were targeting 330 planes during 2009. As I noted a few days ago, reports that Delta had changed its plans were incorrect: they had always intended to put planes in service with Wi-Fi during 2008.
(Coincidentally, my mainstream media piece on in-flight Internet access appears in Saturday's Seattle Times--and Delta announced its news too late to include!)
Because the FAA certifies airworthiness of equipment by its installation on specific models of aircraft, it's worth noting that Delta has the greatest number of any model of planes in those two models: Planespotters.net says Delta has 132 757s and 116 MD88s in service. It has a sizable number of 767s (99) and 737s (75), as well. Delta's total in-service count is about 450.
Many of these planes serve international routes, and Aircell's service currently works only over ground and only over the U.S., so 330 may represent the total number of primarily domestic wide-body craft. (Aircell has a satellite add-on via Inmarsat for general (private) aviation, and the company told me a few weeks ago that they're already talking with airlines that fly over water about a hybrid ground/satellite operation.)
Delta's merger with Northwest Airlines adds about 275 more, of which 71 are Boeing 757s, although Airbus craft form the substantial majority of its fleet. Again, it's unclear how many of these planes are used mostly for international or mixed US/international routes.