Well, this was a pleasant surprise. I launched Lightroom a little while ago and was greeted with an update available message. Upon checking out Adobe's Lightroom Journal, I see that the final 3.2 version now has direct tethering support for the Leica S2. This is pretty big news and I plan to put tethering to the test in the morning.
LR 3.2RC already added a custom color profile for the S2 (Adobe Standard) as well as making some pretty decent reductions in noise at higher ISO settings. Now, with the addition of direct tethering, Lightroom becomes even more of a go-to software for S2 users than ever. The only thing lacking right now is lens profiles, but I'm sure given the close relationship of Adobe and Leica, these too will come in future LR updates.
For now, fire up LR and let the updating commence.