Chrome also has a built in kiosk mode:
In regards to the csv, all you have to do is take the dataset from the trend and convert it to a CSV then download it. Take a look at the adHoc trends page on the Ignition Exchange, there is a “Save as CSV” button that does exactly what you want:
In regards to the “local device functionality”, IA will be releasing a “workstation edition” for perspective with Ignition 8.1 that will essentially make it a hybrid, web app but in a “kiosk executable” format like Vision. No guarantees as to what functionality it will add at first, but it will at least cover the kiosk mode mentioned above, maybe some other neat stuff too.
I work almost exclusively in Perspective at this point, when possible, and I personally think that if you can get into the mindset of how to make things happen in Perspective, that you will be much better off in the long run. I would say at this point (other than the local device peripheral access like serial) there is probably nothing I could do in Vision that I couldn’t in Perspective, and a whole lot more I can do in Perspective that I can’t in Vision. I have also been using Perspective full time since it came out, and have had about 150 support tickets in total while it was going through it’s buggy first iterations (much better now) so you’re mileage may vary. You will definitely find those here who will say Vision all day, but it’s really up to what you feel Is best for your specific implementation.