Basically if I think that I used to carry a massive record bag with me, and need all the kit set up at the other end, this does present a very viable alternative. The functionality is basic, but enough to put a set together.
And click on this link to see reviews and information about the app. And of course thanks to everyone who voted for it with the clapping. The clapometer did not lie.
Finally, a quick pic of me on stage demoing at Stream today. Thanks to Candace Kuss for the pic.