What's so good about the iphone? - 2

I like the look of the iPhone but have always stayed away from them because I don't like the idea of iTunes. I have alot of legal movies and songs downloaded from different download site on the internet but from what I understand you can't just copy paste these to an iPhone like you can with every other phone. Is it true you have to convert them to have them play on your iPhone? I'm currently using an Xperia z. Its a great phone but I still like the look of the iPhone. If it wasn't for iTunes and having to use apple products exclusivley I would have bought one. I have alot of friends that are the same as me. So tell me what's so good about the iPhone compared to other phones when you can't even copy paste normal movie and song files. Do you think the next iPhone will let you do this or will it always be the same

New computer old iphone, how do i sync my music, apps and photos?

Recently bought a new computer because my last computer failed on me, deleting all my programs from my computer, so I downloaded iTunes but I'm not sure how to put all of my files from my iPhone to my new iTunes on my new computer without completely wiping out everything.

Any help will be much appreciated!

Should I let my iPhone trickle charge at 100%?

Some websites and apps are saying you should let your battery trickle charge at 100%, which means the percentage might say 100% but the unplug symbol isn't there yet, should I wait for that symbol to be there even though it's at 100%?

Why can't u log into iTunes?

I have an iphone 5 and every time I try to log in to download an app on the appstore it makes me enter my password then it says unknown error so I tryed to use the same log in on my other old Iphone 4 it works how can I fix this

Has anyone had their iphone 4 glass color changed?

I'm wanting to have the glass in my phone changed to a new color by a store called Ifix & Repair. Has anyone ever had this done before by anyone? Did the phone still work good after you had the glass changed?