Google G2 to launch by summer?

A successor to the Android-powered T-Mobile G1 mobile phone will be launched in May, according to an assortment of online rumours. The G2, made by HTC and codenamed Sapphire 2.0, won't have a slide-out keyboard but will apparently have a 3.2 megapixel camera. [Sources: Wired.com; PCWorld.com]