>> The new internet devices will need a way for the GUIs and apps to be multi user safe
> What's wrong with Android's security model? It sounds like exactly what you want. Each application is sandboxed with only the capabilities that the user allowed it to have when it was installed.
I believe I clearly answered that question in the section you quoted? Where in android is there ANY support for more than one human user?
> Well, the iPad shipped without any kind of multi-user support at all. So apparently some fairly smart designers in Cupertino disagree with you.
I am sure they are very smart, but I spend very little time thinking about them. What does it matter since they obvisouly do not care about my needs or desires?
> In general, users tend to hate complexity and love simplicity. It's a lot simpler to just buy your kid a separate tablet than it is to fiddle with complex security protocols. Especially when the cost of the tablets gets into the $100 or $200 range, that's the solution that a lot of people are going to take.
Simplicity is great. However, even at $100 a pop, I would expect to be able to read my email on my tablet without revealing my password to anyone I happen to show a youtube video to. The cheaper the device, the more likely it will be passed around, shared (people will have less concern for the integrity or loss of the device). I owned a tablet for one week, and this was my first concern when I had guests over. I wouldn't tell you that you should care, but clearly, I do.
> Something like LXC or vserver could provide separate environments for separate users
It seems that perhaps someone suggested that in the first post of this thread. ;)
> You could probably add more and more security features over time, but there's very little evidence that home users of a tablet want them or could understand them.
Well, I thik I know at least one user who wants and could understand it (if done well, the whole point of this disscussion, no?) After reading some of the responses in this thread, I suspect that I am not completely alone. Where is your evidence that no one wants it, or did you just mean that figuratively?