My iPhone 4 won't let me download any apps?

I've tried turning it off but it's still the same. When I download an app it says waiting but then it says " Unable to download application this app could not download at this time" this has been for the past two days. What can I do?

In itunes is there any way to select multiple songs to send to itunes library?

I just mixtapes from datpiff and the only way i could put it in my library was to select manage songs manually under my devices. I didn't know that it would delete my songs from my iphone to put that on but it did. I only have songs from itunes, not beemp3 or datpiff.luckily all my songs are saved under the music file and its 319 songs. Is there any way i can select all them to put in my library? I know about the hold shift trick but its not working.

Will I loose my pictures updating my iPhone 4?

I currently own an iPhone 4. I'm ready to update the phone to the lastest verison. I plugged in my iPhone into the computer and it says I have verison (4.2.1). The latest verison of the iPhone is (5.1.1). I'm ready to update to the newer verison because several things are not working on my phone now that my verison is so old. I read that if you back up your iPhone (right clicking your iphone and choosing back up) that your data will not be erased. And after you update, you can reload all your apps and data onto your phone. Does this include your photos? I have 1800 pictures in my camera roll and I was wondering if my pictures will get lost in the process of updating.

What AV receiver should I get? Please provide specific models?

I'm looking to add a home theater system. I have a 55in LG smart TV, LG blu-ray player, and outdoor speakers. We want a reasonably priced receiver that has the following capabilities:

multi-zone (outside speakers)
iPod/iPhone connectivity
Pandora/Sirius Internet radio
Control music with app on our iPhone (i.e. While sitting outside we don't have to go inside to play something different)
Surround sound for Movies
We're open to speakers in a set or separately… But what do we need to check for compatibility?
We can connect the receiver directly to our network, but would like wi-fi and bluetooth, too.

There are so many choices and models. I know to weed out ones because of network connectivity and multi-zone, but beyond that I don't know how to choose. I want something reliable, easy to use, and not too expensive (middle of the road). I want decent sound but it doesn't have to be high-end concert sounding.

We don't use video gaming consoles, or anything beyond the basics.

Found an iphone 4 can i activate it?

I found an iphone 4 while i was at a park with my cousin. I looked around but no one came for it and the battery is dead. I know alot of you people say to return it, but the thing is that the park i found it in is in Wisconsin and i live in Chicago.( I was visiting my cousins) It has been about 2 weeks and no one has traced it or maybe its because it has no battery, to far way i don't know. But i was thinking of use it for my self like maybe activating it if possible. I know i will feel bad, but whatever you know. So is there a way to activate it with a different company or some how? Also i don't want to turn it on because i'm afraid that if it turns and maybe i get in trouble and the police thinks i stole it. Can some one just help me? P.s. I don't trust the police with it because i don't think they even look for the person it belonged to. I bet they ask 5 people then keep it to themselves.

How to turn music sharing off on iTunes?

So I have an iPod and I listen to music my dad doesn't like. And whenever I download it he deletes it, from his iphone, which deletes from my iPod. So I download it again and it gets annoying. We share the same iTunes account but we have different taste in music. How do I turn that iCloud thing off? The music sharing part of it. Because before it was invented I didn't have this problem. Now I do!

How to distinguish what firmware my locked iPhone4 has?

I found a Verizon iPhone 4 Model No.:A1349 in a local public restroom a few weeks ago. It has a passcode lock on it, virtually making it impossible for me to find out what firmware it has so I can find the proper GreenPois0n jailbreak for it. I want to be able to unlock and access this phone. Any ideas/feedback please?