Help IPHONE HAS GRAY SPOTS

My iPhone 3GS has been cracked for months but last bpnight it was normal and I unlocked it and it was all white it was like that for ages the phone rang and I could hear stuff just nit see it than it came back on but with a big Gray spit covering some things it works fine over the spot I just can't see ans it gets bigger/ moves around. What is this and waht do I do

Guys iPhone 4 keyboard help!

So guys, my iPhone 4 is going berserk!
If I press a letter. It starts to spam the whole keyboard and types random letters by itself.
How do i fix this problem? Guys please help. I really need to fix my iPhone. I've restored it to factory settings a while ago and it still wouldnt help!

I want an iPhone 4 and I'm 13?

I already have an iPod touch 4g and I have e had that for 2 years now I want to get an iPhone 4 which I have the money for and can afford to to pay for it every month so should I get it even tho I already have an iPod touch. I mean I really want to fit in with my friends and the 3G would be really helpful and the camera us a lot better

Where to unlock iPhone 4 Claro Puerto Rico?

Help, I've been searching all over online and I haven't found anyone that can unlock my iPhone. It is currently locked to Claro in Puerto Rico and I would like to use it on AT&T in the US Any suggestions on who can do this?

IPhone 4 has been disabled & says connect to iTunes but I can't?

My son was playing with my brothers iPhone and was pushing the buttons and got the phone completely disabled. I don't have the computer he originally set up the phone with… And my mac is being so dumb and won't let me update iTunes so restoring it through iTunes doesn't work… And i have tried doing a restore on the phone using the home & lock button per online directions but it's not working… Not sure what to do. Any help would be great, thanks!

Added (1). Thanks, guess I never thought of bringing it to the cell phone provider haha. Appreciate it!

Slept through alarm missed important class?

I'm so mad. I set my alarm on both my iPhone and my old iPod touch and somehow I slept through both of them? I don't even get how it's possible, I don't even remember the alarms ever going off. I needed to be at class at 10am and I didn't wake up until 1pm! Ok I gotta admit I was up until like 3am studying cause I have exams in a few weeks but still I should have been able to wake up with the alarms.

Anyway, this was an important class because we had to hand in our lab books for my physiology class which is worth 2% of our grade. Also we get a participation mark of 2% for asking questions about other people's oral presentations which were done today. I wrote up several questions in preparation last night and now it was all a waste, so I'll get 0% for that too.

Do you think my teacher will let me hand in my lab book late? I guess about the 2% participation there's nothing I can do, seeing as I wasn't actually in class.

I know this sounds really silly because it's "only 4%" and it's not like this was the exam, but I'm hardly doing great in this unit and this 4% could every well be the difference between me passing and failing.

Any advice to make sure it doesn't happen again? I'm really scared to go to sleep in the future cause I'm worried I won't wake up in time for future classes. :/