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Mobile Minutes: Deloitte buys Heat; Zuckerberg embraces live video; Amazon?s grocery deal; WhatsApp cuts off BlackBerry

Management consultants are moving deeper into Madison Avenue?s territory.

Live video has a real fan in Mark Zuckerberg.

Amazon.com Inc. has struck a deal with the U.K.?s fourth-largest grocery chain Wm Morrison Supermarkets PLC, taking the Internet retailer a step closer to becoming a serious player in Britain?s ultracompetitive online grocery market.

The world of smartphones looks very different to the one WhatsApp was born in seven years ago. Today BlackBerry has approximately 1 percent of the market, but in 2009 it was a world-leading smartphone vendor.