I've been part of the PB for the last few years. I usually install the new version on my phone and iPad at the same time. Haven't had a problem. I need my daily drivers to remain 110% problem free so I'm not going to install the new operating system on them but I have an extra iPad Air 2 that I'd like to use as a guinea pig. Odd things can happen with beta software like text messages and e-mails can be lost or notes can disappear. What happens if my test iPad is linked to my iCloud account. If there was a text message problem for example, would the texts also disappear from the devices that are running iOS10?