"Security in Practice" @ WSO2Con 2011

Facebook unfriend app demoed during the second day of WSO2Con

It's was a perfect demo on WSO2 StratosLive [Java PaaS] by Shankar which included developing and deploying cloud applications in front of a huge audience. Everything went perfect and Shankar was honored with a thundering applause.

During his demo, Shankar also demonstrated the "Catch who didn't match you" application - which let you find who unfriended you in Facebook.

"Catch Who Didn't Match You..." - Facebook unfriend finder on WSO2 StratosLive...!!!

The word "unfriend" was named as the word of year 2009 by the Oxford Dictionary.
unfriend – verb – To remove someone as a ‘friend’ on a social networking site such as Facebook.
The Facebook, the most popular social networking site, doesn't offer a straight forward way to figure out who removed you there.

The "Catch Who Didn't Match You" application caters exactly that. Currently it's running on WSO2 StrtosLive PAAS and backed by a highly scalable cassandra NoSQL data store - available via http://tinyurl.com/stratos-unfriend.