Going be a Wednesday report in the Wall Street Journal (WSJ), Sprint CEO Dan Hesse will introduce the carrier’s new 4G (fourth-generation) wireless smartphone – which most likely will be the first WiMAX-capable HTC-manufactured handset called the ‘Supersonic’ - during a CTIA Wireless show in Las Vegas, Nevada, next Tuesday.

In a move to eliminate the so-called specter use of electricity by a cell-phone charger in standby mode, AT&T will introduce its energy-efficient charger – the Zero Charger – across its US stores in May this year.

In a March 17 confirmation, wireless carrier Sprint said that it will ‘soon’ sell the Google-branded Android-based Nexus One smartphone – however, the carrier refrained from giving further details about the when it would be offering the Google handset and how much it intends charging for it.

According to a new study conducted by researcher Chetan Sharma of Chetan Sharma Consulting, the global market for mobile applications will likely witness an unprecedented ‘explosion’ over the coming two years – with the sales of mobile apps expected to touch a whopping $17.5 billion in 2012.

The much-awaited HD2 smartphone availability in the US was Tuesday announced by HTC and T-Mobile wireless carrier; who also revealed that, at present, there were no specific plans to include the forthcoming Microsoft Windows Phone 7 OS on the handset, which will hit the US markets March 24.

At the MIX 2010 conference in Las Vegas, Microsoft officially disclosed the lack of backward compatibility of its forthcoming smartphone operating system - the Windows Phone 7 Series - with its earlier mobile OS version, Windows Mobile 6. x.