I recently bought a Lumia 920 and I'm loving it. I don't have kids, but I thought I could use kids corner to shield my phone from colleagues or the wife
But there is a serious design flaw in the implementation of kids corner. Or at least, that's the way I see it.
I guess Microsoft designed it in such a way that you unlock the phone, swipe to kids corner and then give it to your kids.
When you enable kids corner, you can opt to assign a passcode to unlock your phone. You can also chose a timeout. After being on the lock screen for more than the timeout, the passcode needs to be entered again. If you unlock the phone before that time, no passcode is needed. This is the first flaw. If you give it to your kids, they can simply lock the phone and unlock it again to get control of the complete phone. Not what I would call safe. The second design flaw (again, IMHO) is when you remove the timeout, which is what I want. If you give the phone to your kids and they accidentally lock it, they must enter the passcode before it can be unlocked. So either you give them the passcode, or you unlock the phone yourself. This could get tedious
You cannot assign a separate passcode to the kids corner (or none).
What I would like is to set a passcode with no timeout and no (or different) passcode on the kids corner. In that way, you can give your phone to anyone and they cannot access the phone, only the kids corner. This way kids corner can also be used for people without kids as an unsecure area of your phone. Put all apps there that are safe and you can lend it to anyone without fear of loosing or stolen data.
Or is there something I'm missing?

I guess Microsoft designed it in such a way that you unlock the phone, swipe to kids corner and then give it to your kids.
When you enable kids corner, you can opt to assign a passcode to unlock your phone. You can also chose a timeout. After being on the lock screen for more than the timeout, the passcode needs to be entered again. If you unlock the phone before that time, no passcode is needed. This is the first flaw. If you give it to your kids, they can simply lock the phone and unlock it again to get control of the complete phone. Not what I would call safe. The second design flaw (again, IMHO) is when you remove the timeout, which is what I want. If you give the phone to your kids and they accidentally lock it, they must enter the passcode before it can be unlocked. So either you give them the passcode, or you unlock the phone yourself. This could get tedious

What I would like is to set a passcode with no timeout and no (or different) passcode on the kids corner. In that way, you can give your phone to anyone and they cannot access the phone, only the kids corner. This way kids corner can also be used for people without kids as an unsecure area of your phone. Put all apps there that are safe and you can lend it to anyone without fear of loosing or stolen data.
Or is there something I'm missing?