The A.C.T. PRO elliptical is brand new elliptical for 2010. It is a step up from the last years ACT and brings a bigger punch. The biggest difference between the old ACT and the new one is what is inside. The flywheel was totally redesigned and brings a much smoother, quieter ride. It also comes with prescision integrated magnetic resistance that allows you to adjust the resistance of your workout on the fly. As for the features, the ACT Pro comes with NordicTrack's brand new iFit live. iFit live is the industries only wireless connection between your elliptical and your computer. With iFit live you will be able to track daily workout including calories burned and have them saved on your computer under your very own iFit personal profile.