Mobile learning--the use of mobile devices for educational purposes by students--is rapidly moving from an experimental initiative by a few innovative districts over the last five years to a broadly accepted concept in K12. The latest research and surveys, results of pilot programs, and analysis of trends in both public education and the broader technology industry all indicate that ubiquitous mobile learning--with mobile devices in every student's hands and used in every classroom, school and district in the country--is advancing quickly and will arrive faster than many expected. As a result of these trends, the education industry is also rapidly shifting in a new direction, with multibillion-dollar corporations reorienting their business strategies as mobile technology is beginning to take hold in K12 even faster than some analysts anticipated. The effective use of mobile technologies also continues to develop, just as their acceptance and adoption spreads. One of the most promising developments is the ability of mobile devices to allow students to produce, rather than just consume, many types of content, all with one device. Another capability of mobile learning that has excited educators and industry insiders alike is the ability to conduct immediate and ongoing assessment. If every student had a mobile device at all times, teachers could ask questions throughout class, for example, with students answering on their devices while they worked or as they heard a lesson, enabling the teacher to adjust instruction based on this constant assessment.