Google Inc has entered into a definitive agreement under which it will acquire Motorola Mobility for $12.5 billion.

The transaction will be for $40.00 per share in cash, or a total of about $12.5 billion, a premium of 63 per cent to the closing price of Motorola Mobility shares on Friday, August 12, 2011.

The transaction was unanimously approved by the board of both the companies.

In a blog post, Google's Larry Page said, "Motorola’s total commitment to Android in mobile devices is one of many reasons that there is a natural fit between our two companies. Together, we will create amazing user experiences that supercharge the entire Android ecosystem for the benefit of consumers, partners and developers everywhere.

"This acquisition will not change our commitment to run Android as an open platform. Motorola will remain a licensee of Android and Android will remain open. We will run Motorola as a separate business."

Mr Sanjay Jha, CEO of Motorola Mobility, said, "This transaction offers significant value for Motorola Mobility's stockholders and provides compelling new opportunities for our employees, customers, and partners around the world. We have shared a productive partnership with Google to advance the Android platform, and now through this combination we will be able to do even more to innovate and deliver outstanding mobility solutions across our mobile devices and home businesses."

Mr Andy Rubin, Senior Vice President of Mobile at Google, said, “We expect that this combination will enable us to break new ground for the Android ecosystem. However, our vision for Android is unchanged and Google remains firmly committed to Android as an open platform and a vibrant open source community. We will continue to work with all of our valued Android partners to develop and distribute innovative Android-powered devices.”

The transaction is subject to customary closing conditions, including the receipt of regulatory approvals in the US, the European Union and other jurisdictions, and the approval of Motorola Mobility’s stockholders. The transaction is expected to close by the end of 2011 or early 2012