Bright Simons, a Ghanaian social entrepreneur, has devised a phone-based system called mPedigree to tackle the problem of counterfeit drugs.

ECONOMIST: Beyond voice

Apple Chief Executive Steve Jobs has a problem: He's taken Apple into the phone business with the iPhone.

FORBES: Why Apple Won't Become A Phone Company

Here is the problem: Verizon has a Preferred Roaming List (PRL) built into every phone that preselects preferred carriers throughout the world with which they have roaming agreements (and optimum rates to the carrier).

FORBES: Verizon Smartphones And Cruise Ships Don't Mix