WhatsApp for Android was just updated from the official website, to version 2.8.8736. This is a public beta, with which some errors found in previous Beta version have been fixed. No official changelog.
WhatsApp for Android is a smartphone messenger available for Android, BlackBerry, iPhone, Windows Phone and Nokia phones. 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.
Download the latest version of WhatsApp for Android and enjoy the service free for 1 year! During, or after free trial period you can purchase service for $0.99 USD/year.
Download | Official Site