Let's face it, a huge majority of our students have cell phones. Many of them are smart phones with APPS.
Harness the technology in a positive way. Use cellphone apps and cameras to your advantage in the classroom.

Depending on the type of phone, some apps are available and most are free.
Check iTunes:
QR Readers
Songify - a cool way to read text and it is then set to music.
Ustream video recorder and player (2 separate apps)