I have been at some large stores testing my tour on both iPad 2 and 3 and some Android tablets.
It showed me several problems I need to handle. One of them was that in the large Humac Apple Store the iPad asks for airplay when playing video.
IIn my large popup video I get only a grey area with a computerscreen and a text saying Humac.airplay.
The embedded distorted videos did not show the poster but just a black area and when i clicked it I got also here the a grey area with the computer symbol.
I assume that airplay is something many people uses, I never used it and as far as I can see there is nothing in the iPad settings you can control it with.
If this is a problem I need say something in the Tour Guide about it.
Hans