LipSync is an After Effects plugin allowing Papagayo .dat files import or manual animation.
It uses time remapping method, so you can see the keys on this parameter (shortcut: RR).
The interface looks like this:
To install this plugin, download the .zip and unzip it in: .. / Adobe / Adobe After Effects CSx / Support Files / Scripts
(ie, mouths folder into the /scripts and LipSync.jsx file in the subfolder /ScriptUI Panels)
This plugin is compatible CS6, and CS5.5, not yet tested on CS4 and CS5.