Should I Continue Reading The Batman: Court of Owls Story Arc?

I'm new to the batman comics and have started using the DC Comics iPhone app and have bought three issues of this Batman arc. I kind of like it but wanted to know if there's a better Batman arc to read that is on the app that includes a more widely known character and Batmans problems with character over a fairly large span (The Joker, Bane, Ra's Al Ghul, Scarecrow, Two Face, Mr. Freeze… )

IPhone tech help. Apple geniuses needed?

Ok, so my friend got me IOS 7 beta since I gave him the Wi-Fi to my school which is super hard to get.So, he gave me the update for free and now my phone has been acting strange. It freezes more and more and on top of that, it crashes! But thats not the worst part, MY Wi-Fi GOT GREYED OUT. So he told me to back up my iphone, restart it completly, put the stuff back on, and then from that, I get my Wi-Fi back. I tried it and now my IPhone is bascially in a comma attached to my IMac. It won't let me go to itunes cuz my phone is not regrestered as a developer. Any ideas please?

Will updating to iOS 7 clear my data?

If I update to iOS 7 on my iPhone 5 version 6.1.4, will updating clear out my apps, photos, data?
Also, will my phone number stay on the iPhone 5? As in that it won't clear out and have to head back to the store to fix it?

What is the point in taking a selfie?

So all the time I will go on Instagram and see pictures of my friends taking selfies(iPhone pictures of them looking at the camera.)I'm not criticizing or anything, I just want to know what the point of taking a selfie is.

How to secretly, slowly destroy an iPhone?

Long story, anyways, my friend is getting a replacement iPhone next week, and I wanna destroy it without cracking the screen so he can be even more disgusted at his phone, maybe even pour some water drops at the charging port?

Is it possible to return a new iphone?

Well, I want to buy a new iphone 5 but I don't know if I should get one considering the fact that a new iphone 5s will come out in September. My iphone 4s fell down in the sink and is completely broken and I just want a new iphone 5. If I buy one now is it possible to exchange it? And what do you think, is buying an iphone 5 worth it?