These videos are a very nice introduction to Live. It is not going deep in some parts but it covers a lot of the functionalities so that you can get the basic idea of what is possible and then experiment or use other sources to further dig into that topic. Also the instructor is quite nice and entertaining. Overall it is much nicer than reading the manual to get started and you can listen to the result of the different things!
Forget about the reviewers that gave one star, one even thought it was the full program instead of the tutorial (sic) It is a bit unfair from his side to give such a rating because it is a nice piece of work...
I used the iPAD version, if the iPhone version is giving problems is a different story. But i guess the iphone is to small to really see well and follow what is going on...
Telenyeko about Course For Ableton Live 101