ALSO NOTED: Bharti adds another 1.4M subs; Mobile advertising agency launching in China; and much more...

> More on Crown Castle's competitive position following its announcement last week that it will buy rival Global Signal for $5.8 billion in cash, stock and debt. Article

> Bharti Airtel added 1.4 million subscribers in September, after adding 1.3 million in August. The carrier's GSM subscribers now total 27 million. Article

> Iran to auction off "catchy" mobile numbers like "0912 345 6789." Article

> Advertising companies team up to launch mobile advertising firm in China. Article

> Mobile music: 3G's saving grace? Article

And Finally... Wireless Fibre Systems claims it has made a wireless modem that works underwater. Article