1) WHATSAPP: this app is awwwesome!!!
Just think about it...no need to pay more for text messaging in your plan!!!
Only ONE payment of 0,99$ gives you and anyone who has the app (not only for iphone..but also for BlackBerry, Android and Nokia) the ability to text message unlimitedly!!!!
http://www.whatsapp.com/
2) VIBER: This app is also grrrrrrreat for communication!!!!!!!!!!!!
INTERNATIONAL FREEEE CALLS TO ANYONE AND ANYWHERE IN THE WORLD AS LONG AS THEY ALSO HAVE AN IPHONE WITH THE APP!!!!!!!
http://www.viber.com/
