The restaurant is in a northern Beijing suburb popular with young executives, representative of China's surging wealth and the size of its business class.

FORBES: Fat And Happy In Oak Brook And Beijing

Wharton's latest executive class there enrolled 102 students, about double the size of the first cohort.

WSJ: From Wharton to Carnegie Mellon, B-Schools Set Up Shop in San Francisco

The plaintiffs say the size of the class, while large, results from Wal-Mart's status as the nation's largest corporate employer.

WSJ: Supreme Court Will Hear Wal-Mart Challenge to Class-Action Suit

Just 12.2mm slim (measurement excludes lens cover), which is smaller than the thickness of a standard AA-size battery, the Cyber-shot TX55 is the world's thinnest camera in its class (among cameras with an optical anti-shake function).

ENGADGET: Sony Cyber-shot TX55 packs 16.2-megapixel sensor, promises 'extremely low' noise in dim light