For years, testing companies have embedded trial questions in real tests.

WSJ: Test Maker Pays New York State Students to Take a Trial Exam

With more and more of the returns in these early deals embedded in milestones, it poses a bunch of interesting questions.

FORBES: Preclinical Biotech Structured Deals: Reflections on 2013's Solid Start

There are at least three larger open questions about the prospects for WiMAX, particularly as an embedded technology.

ENGADGET: Switched On: The WiMAX Window (Part 2)