Baris has a good post on his view of the wireless world in the US. He asserts:
1) The ultimate winners are the wireless carriers.
2) There will be a lot of VC money lost, especially money invested since 2005.
The power of the carrier is felt very acutely in Turkey, where there are three carriers, with one over 65% marketshare, and no number portability. Trying to make money through wireless offerings get you two immediate partners, which take their cut straight from the top line: the wireless carrier and the government (through very high taxes). This structure is a constant barrier to Turkish wireless services innovation.