Samsung holds 12 percent of the Chinese smartphone market, according to Canalys, behind Xiaomi's 14 percent share.
Chinese officials no longer approve the use of the two antivirus software vendors, according to reports.
Chip giant is showing off an even thinner version of its tablet design and announcing collaborative efforts with Acer and other device makers. Also on tap: the desktop, 2-in-1s, and a 3D camera.
The combined market share of the two companies puts them just behind Samsung and Apple, according to one analyst firm.
The software giant says it will continue to license its operating system after it buys Nokia, but its other partners aren't likely to stick around long.
Vice President Hugo Barra apologizes after it's revealed the Chinese smartphone maker's iMessage-like service was collecting some user information.
David Sacks, co-founder of the social-networking vendor, announces departure on Twitter.
The maker of graphics chips posts stronger revenue in both its graphics processors and its line of mobile chips used in cars and tablets.
With local smartphone makers in China and India toppling Samsung, the company is feeling the heat in the fastest-growing markets.
Microsoft's latest strategy with Windows 8.1 is to roll out regular updates that refine the OS but don't deliver major new features.