It has recently been revealed that WhatsApp messages were sent in plain text, and anyone on the same network with the the right Android app could eavesdrop on them.
The WhatsApp app disappeared from Marketplace for some time after, and now on its return WhatsApp support has confirmed in the new version the messages are now encrypted.
On a separate note, we have had complaints that the latest version of WhatsApp, which has never been the most bug-free app, is now much more unstable. Has this been the experience of our other readers? Let us know below.