How Third-Party App Makers Plan to Survive Twitter's New Ad Blitz

Twitter has finally decided to start making money. They're buying or making services and software to fill the holes in their own business plan, and they've rolled out a plot for advertising, the first stage of which is called Promoted Tweets. All of that seems to spell trouble for the existing third-party Twitter infrastructure, including developers of apps, services, and even advertising.

So why aren't third-party app developers shaking with fear?

Twitter has never been shy about plans to...