Tech Biz Cheat Sheet: Facebook Rolls Out iPad App, DOJ Investigates Sina and Baidu

The Department of Justice is rumored to be investigating Baidu (NASDAQ:BIDU) and Sina (NASDAQ:SINA) for accounting fraud.

Synaptics (NASDAQ:SYNA) has appointed former AMD (NYSE:AMD) exec Rick Bergman as its new chief executive officer.

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Priceline (NASDAQ:PCLN) is launching an entry into the daily deals space, offering deals on same-day hotel bookings in a number of major U.S. cities via its iPhone app. Priceline’s rival, Expedia (NASDAQ:EXPE), announced a partnership with Groupon in June.

Best Buy (NYSE:BBY) has slashed the price of Research in Motion’s (NASDAQ:RIMM) PlayBook tablet following Amazon’s (NASDAQ:AMZN) launch of its new Kindle Fire.

Cisco (NASDAQ:CSCO) has announced plans for a major software revamp of its enterprise videoconferencing line, focusing on recording and sharing video content and extending support to mobile devices. Polycom (NASDAQ:PLCM) is Cisco’s biggest competition in what has proven to be a solid growth market. (NASDAQ:CTRP) has announced a new $100 million share repurchasement program, following up last week’s announcement that the company would buy back $15 million in shares from investors.

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Facebook plans to roll out its iPad app next week, as well as an advanced mobile site that will run Facebook apps on multiple platforms using HTML5 technology, which will allow the company to avoid paying Apple’s (NASDAQ:AAPL) a 30% cut on in-app purchases.

Nokia (NYSE:NOK) says it will cut 3,500 jobs across Europe and the U.S. as it scales down operations, also closing a manufacturing plant in Romania as part of its realignment.