Vodafone (NASDAQ:VOD) and Facebook team up to release the 555 Blue, a 2.5G smartphone for...

Vodafone (NASDAQ:VOD) and Facebook team up to release the 555 Blue, a 2.5G smartphone for developing markets. It comes with a qwerty keyboard and an OS that puts Facebook at the heart of the device. The phone is expected to retail for around $100 – a crucial price for mass-market adoption.