The following examples show us teachers try to adopt latest, attractive and interactive mobile technologies in classroom so that students are motivated to learn. Students usually are very interested in using mobile technologies since they are allowed to move freely in the classroom and more easy to "play" with their classmates. Also, It helps them understanding the concept through mobile technologies rather than memorization.
(Youtube videos below are embedded from Youtube, rights belong to contributors/uploaders in Youtube.)
Students and professors use their iPhones in the classroom at Abilene Christian University
iPad
Using Mobile Devices to Bring Rich Media Content to Underserved Classrooms
Further readings,