Mobile Lowdown 9-14-11: Google/Motorola; Apple/China; Intel; Walmart

A look at some of the big stories in mobile today:

» Google agreed to pay 33 percent more — $3 billion — than it originally offered for Motorola (NYSE: MMI) Mobility to get the deal done at $12.5 billlion: were patents the driver? (Motorola Mobility’s SEC Filing)

» China Telecom, the world’s largest CDMA operator, is getting ready to launch the iPhone 5 in October, according to a story in the Southern Metropolis Daily newspaper. Meanwhile, another source claims Apple (NSDQ: AAPL) is gearing up to release a final beta version of iOS 5 to developers this Friday, with the “gold master” ready by September 23 — to be loaded on to already-manufactured iPhone 5s. (CapitalVue, BGR)

» Intel will develop a phone with Google (NSDQ: GOOG) for 2014. (more here)

» Walmart has bought the social-media-focused mobile advertising outfit OneRiot. (OneRiot blog)

» Some largely favorable reviews of Windows 8, the cross-device OS for PCs and tablets being shown off by Microsoft (NSDQ: MSFT) at its Build conference. Some nay-sayers, too. (Digits video; Daring Fireball)

» Qualcomm unveils new 2.5Ghz processors for smartphones. (Pocket Lint)

» Twitter, BlackBerry and Facebook face more questions from MPs over riots in the UK this past summer. (via FT)

» Nokia shows off a new “car mode” that lets drivers use their navigation and other traveling apps. Are cars the next big device for wireless operating systems? (Nokia)

HTC has unveiled the Android-powered Sensation XE, the first device to feature the enhanced audio system, Beats by Dr Dre, that it announced in August. (via HTC)