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Mobile Minutes: Helping the homeless; EU messaging rules; Bill Gates energy fund; Best video calling app

The tech industry is the source of great wealth in San Francisco. Could it also help the city's least fortunate?

Messaging services such as Microsoft's Skype and Facebook's WhatsApp face stricter rules on how they handle customer data under new security laws due to be proposed by the European Union, according to a draft document seen by Reuters.

You have to cater to the preferences of the least technically-inclined person in the group. Everybody else will wind up getting roped into providing tech support for that individual, so making things easier for him or her can only ease the work for the other people on the line.

Bill Gates and more than a dozen of the world?s wealthiest individuals revealed a new $1 billion investment fund late Sunday to foster major advances in clean energy production.