Just found out that the guys at DIY have come out with a new version of the PnP which works on the updated firmware and boards so we can now use now only Hybrid Alpha-N tuning, but a newly released ITB-specific algorithm that should make tuning and driving much easier now.
Check it out on their site, I've already started saving my pennies:
http://www.megasquirtpnp.com/mspnp_features.htm