Just had a thread about this the other week:
http://cs.trains.com/mrr/f/744/t/211805.aspx
Works with pretty much any DCC system except MRC, they won’t work with the JMRI developers to implement their protocols. All the other major manufactuers have.
This isn;t the old Lenz cordless phone thing, that had to be the most kludgy wireless implementation ever, which opened the door for the CVP Lenz compatible throttles. This is a specific app for model railroading, with slider throttles and buttons for direction and functions. No trying to remember which buttons 0-9, # and * do what to select and run your loco.
–Randy