now that airtran favors bwi over phl, what gates will airtran use in phl. during the summer i think they were planning to use 4 new gates at terminal D scheduled to open soon, however now that they have around 10-12 flights a day there is no reason to need 4 gates. will they take twa's old gates? what airline will take the gates at D, because they have been designated as lowcost airlines only. with most other lowcost airlines in phl operating no more than 5 flights a day, i dont know who would want 4 gates, will ATA?