@Wetrix I mean look at Graphene and Calyx (I know they aren't for tablets but your response didn't seem to be solely about tablet either), Graphene is more secure than iOS and innumerably more private, Calyx is less secure but still nothing to scoff at and even then is still way more private. Also just because a project is open source doesn't mean that its less secure, it's actually strongly the opposite. Just wanted to put that out there, enjoy your tablet and have a great rest of your day!