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Mobile Minutes: Joint effort against hacking; Uber CEO boasts about culture; BlackBerry returns; Apple's US spend

SAN FRANCISCO ? Microsoft, JPMorgan Chase and other corporate giants are joining forces to create a new kind of computing system based on the virtual currency network Ethereum.

Travis Kalanick tells a driver to take responsibility for his problems and boasts about a tough culture.

China's TCL could make as many as three BlackBerry phones this year as it builds the portfolio. Also, could there be hope for a revival of the Palm brand?

Apple (AAPL.O) spent roughly $50 billion last year at U.S.-based suppliers including 3M (MMM.N) and Corning (GLW.N), Chief Executive Tim Cook said on Tuesday, stressing the iPhone-maker's commitment to U.S. manufacturing.