Well, how convenient. We've posted earlier today that the ASUS Transformer Pad TF300T was getting a small bugfix update, and now the TF700T is getting its own. Similarly to the TF300T, this small update is bringing the model up to firmware version IML74K.US_epad-188.8.131.52-20120907, according to our forum members who have received it. The update is small, mostly updating the camera firmware and fixing some bugs here and there.
If you've got a Transformer Pad TF700T laying around, head to Settings > About tablet > Software updates and see if your device is ready to download the update. Once you get it, chime in in the forums and let us know how it's working.