I restate what I said when RIO was announced. I suspect US is preparing CLT for a merger with, or spin off to someone - like maybe AA. Of course it may also be for the purpose of US retaining CLT and downsizing PHL for a merger with UA. The latter speculation is based on the fact that in order for CLT-Europe to work, it requires significant connecting traffic - that is the US domestic network. IMO, it just seems financially illogical in this economic climate for US to maintain 2 international hubs less than 400 nm apart. Of course, IAD-CLT is even closer, but UA supposidly wants/needs a Southwest hub to better compete with ATL. I note that there are no announcements (or substantial rumors) regarding any additional services from PHL. I'm even more suspicious of this move since it was announced with a 333 and not as seasonal, which makes it difficult (for me) to accept that it is a "relief" for the PHL-FCO flight. FCO from PHL and NYC, with substancial Rome O&D, typically struggle during winter with this route. Now if they announced PHL-NRT with the higher MTOW 332s (potential 2010 deliveries), I might change my opinion.