WhatsApp, the cross platform messenger for your Windows Phone, has been updated to version 1.4. Along with the ability to text across platforms (available for Android, Blackberry and the iPhone) WhatsApp also gives you the ability to send pictures, video messages and now voice notes.
While no official change log is available, it is our understanding that text is larger and sending images is now problem free. If you're seeing additional changes with the update, feel free to share them in the comments section.
You can grab WhatsApp here at the Marketplace. Keep in mind WhatsApp is a mango app so you'll need to be running Windows Phone 7.5.
Thanks goes out to Jon B for the tip!