WhatsApp Messenger for our HTC Legend, Desire, Evo, Wildfire, Magic, Hero, Tatto, Nexus One or any Android device, is a smartphone messenger.
WhatsApp uses your 3G or WiFi (when available) to message with friends and family. Switch from SMS to WhatsApp to send and receive messages, pictures, audio notes, and video messages at no cost. Free for the first year!.
WhatsApp Messenger is available free on Android Market.
To learn more about QR codes, click here.