Students are assigned a pocket and at the end of class, random numbers are called to prompt students to share a "Take-Away" from class, students who share can retrieve their phones early before dismissal.

Without using Twitter, simulate the live feed  of Tweets to summarize a resource.  Can be presentational, but can become interpersonal if students are given an opportunity to retweet or respond to other "Tweets"!

Keep plastic cards (red, yellow, green) cards on a key chain to direct students stay in the target language. 

Pocket Points is a mobile app that rewards students to not use their phones during class.

Easily turn a Google™ Spreadsheet into a Set of Online Flashcards
and Other Cool Stuff!