I got my DM4 yesterday and tonight I connected my new Nexus DSC - and it actually worked. Didn't spend a lot of time outside but I did a simple 1-star alignment on Castor with a widefield eyepiece then selected Polaris. Once I moved to the indicated position, there was Polaris - barely in the field but there. I couldn't even see it naked eye due to thin high clouds but the Nexus found it. Can't wait to do a proper 2-star alignment with a crosshair eyepiece and start real hunting. This is all exactly why I've wanted a push-to system for a long, long time.
So now I'm trying to decide how to mount the Nexus unit on the DM4. I've got a crazy idea to (carefully) bore a hole in the DM4 aluminum side to mount a mini ball head then put the Nexus on the other end. This would allow ultimate freedom to position the Nexus for any viewing angle (or away from sight when needed). But I wonder what others have done?