Cell phones in the classroom?

In an age where teachers and students alike seem to be increasingly annoyed by the fight over cell phones in the classroom, is there a way to harness this technology and integrate it into the classroom appropriately? In an age where school budgets are declining, school technology is aging, and many students come to school with the latest and greatest right in their own pockets, it seems foolish to not look at ways in which cell phones can be used to help both students and teachers alike.

• k12cellphoneprojects is a wiki where teachers share their ideas for integrating cell phones into their classroom and curricula.
• From Toy to Tool: Cell Phones in Learning is a blog that highlights uses of cell phones in the classroom.

Please share the ways in which you use this technology in your own classroom.