AT&T is investing heavily in the Nokia Lumia 900 and spending more money on the Windows Phone handset launch than it did on the iPhone, according to a report in Ad Age.
The wireless carrier may be spending as much as US$150 million to advertise the phone, which is an AT&T exclusive. This is a lot of money, even for a carrier like AT&T and leaves us wondering why it would spend so much on a platform that is losing market share.
Ad Age points out that, after years of exceptional sales, AT&T's smartphone growth is slowing now that the iPhone is available on Verizon and Sprint. Rather than rely only on
