I may have identified my problem of the Wifi/SER2 modules not maintaining contact with the Base. I was experimenting with the equipment when I found that one of the DB9 connectors (the one plugged into the SER2) was not seated all the way in. I corrected this, and was then able to run the iPad and iCab apps for several minutes without losing Base contact. I'll give it a longer try and post if this was not the problem.
So far, I've found that both apps are good but not ready for prime time with my equipment. For now, I'm going to keep using the Cab-2 for control, most of the time.
