QUICKLINKS: Yahoo pushes wireless calling into IM app; Business spend on wireless services now one-third of telco costs; Much m

Yahoo pushes wireless calling into its instant messaging application. Article

Business spend on wireless services now one-third of telco costs. Article

Wireless network providers spending more to shore up backhaul. Article

PayPal extends a text message payment option to the mobile phone user. Article

China not jumping to get new VoIP providers in place. Article 

User base of 3G mobile phones growing steadily. Article

More and better security needed for WiFi equipment. Article

China hits 400 million mark in mobile subscriptions. Article