Mobile Behavior: an Omnicom Group Company

1. Retail Evolves: Shop Out In The World With Visual Search http://j.mp/9TaDmq

2. Shakespeare's "Romeo and Juliet" in Twitter twist http://j.mp/dauhLi

3. Barcodes help objects tell their stories http://j.mp/bhOXuk

4. Postcode Wars: London Is Your Game Board With Nike GRID http://j.mp/d2lwcA

5. History Helps Turn Foursquare Into a One-Player Game http://j.mp/dplGNE

6. iPad + Skype + retro handset = ridiculously fun mobile phone http://j.mp/aq071f

7. Google will make Goggles a platform http://j.mp/dzc8yL

8. Consumer Reports calls out Microsoft for “advocating sexting” in Kin ad http://j.mp/dvAncI

9. Boy Scouts Add a New Digital Badge http://j.mp/coF8Oq

10. Perspective: Miso's Somrat Niyogi on "Checking In" to Entertainment http://j.mp/aRx555

Tweetworthy is a weekly roundup of the most shared tweets from @MobileBehavior. You can follow us on Twitter here.

Recently popular apps like MyTown, Gowalla, and Foursquare have turned life into a game. Underneath this is a deeper cultural trend towards expressing oneself and exploring in public spaces.

Nike GRID uses the now almost defunct iconic London telephone box to track a runner's progress at designated Nike branded locations. After registering online, players run between two phoneboxes and punch in their unique user id number at each, logging their run and earning them points online.

For this, users do not need an iPhone or Android device. Nike GRID uses traditional phone booths to let runners score points, become "mayor" of a postcode, and earn badges. Players are encouraged to use their street smarts to get around, and are awarded for speed and agility.

The branded event launches at 8pm, Friday, April 23rd and lasts for 24 hours.

[via contagious]