A recently initiated twitter account named Uber Philly seems to indicate that the private car ordering service Uber, originally seeded by First Round Capital, is coming to Philly. Can't confirm this is legit yet, though there seems to be enough information in the stream to suggest that it is.
I've reached out to Uber for details. I wonder how they will fit in with the local cab market in Philly.
Uber is based in San Francisco.
Update: A company spokesperson tells me: "We're gearing up for launch, but don't have any specifics to share just yet."