The new infographic with its reporting of what devices have been used is very helpful. I'd like to be able to take it the one step further and be able to analyse the device use by whether the respondents completed the survey or dropped out.
This would be the first advance.
My second request would be to be able to analyse drop outs by question by device. This would allow us to see how far through the survey the respondents got before dropping out, and also to allow us to identify if there were particular question types that encourages drop outs because of how they look on a smart phone as opposed to being on a PC screen (e.g. grid questions may look ok on a PC screen but are very hard to read on a smart phone. If we could see there is a correlation between question style and drop outs, we could design better surveys.