I'm glad you are enjoying your N7. Like you, I am an Apple user but decided to try an Andriod and got the N7. I like it a lot and enjoyed using it for a couple of months until it started having serious wifi connection problems. Apparently this is a well-known issue with Google's support site and it's been going on for months. Sadly, Google has not shown support for its users like Apple has. And unlike an Apple store, there's no Google store for me to ask for help other than to send it back to Asus. The process is painful, too. But people who hah gotten replacements still have the same problems. The crazy thing is that my N7 can connect only to an open unsecured wifi channel so it must mean firmware issues. That is very unaccptable. I hope that yours will not have this issue and if you should have it, that it will happen inside your return window.
Router: Asus RT-n66u. Security: WPS2-AES
It's early days, but so far wifi which is provided by my Time Capsule has been rock solid...it would be nice if it had a 5GHZ option though, but so far it's fine. Hope it stays that way!
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Camera launcher for nexus 7will enable you to access the AOSP camera app.
https://play.google.com/store/apps/details?id=com.modaco.cameralauncher
Any third party camera apps should work fine too.
Thanks...Seems like you need an app to turn stuff on....