I purchased one of the new Bachmann HO Alco RS3 E-Z App locos when they first became available about 3 weeks ago, and I tried it out on my HO modules during our club's Holiday display at a local library. It worked quite well using my iPad as a controller, and I was so impressed, I bought a second loco (an F unit). Monday, I spent most of the day running these locos on the layout simultaneously, using my new iPhone (my wife changed the provider, so I had to give up my 5 year old iPhone 3GS in favor of an Apple 5S). The system worked very well, and I found that the phone was easier to hold and operate using just one hand. While I can see room for some feature improvements, for an initial release, I think this system is really terrific. I'm pretty excited about it's future potential, and I can't wait to see what comes next! I'm active in several scales, and I also have a Lion Chief O 3-rail Mikado (which I also am very fond of), and both systems operate in a similar manner. I was an early adopter of DCC (purchased a Digitrax Challenger at Valley Forge in 1993), and I can see the BlueTooth giving DCC a run for it's money. I'm looking forward to BlueRailTrain's release of BlueTooth boards for both HO and O in the near future, and am excited about the future of BlueTooth Control.
Bill in FtL