Unlocked iPhone 5 from the US works in Ireland?

I'm going to Chicago in a few weeks and I realised how much cheaper it is to buy an iPhone over there than in here in Ireland. I know you can buy them unlocked so I was wondering if I could bring it back to Ireland and it would work on Irish networks, like 3 or O2. Any help would be appreciated!

Corners of my IPhone 4 are flashing?

So I got the White Screen of death, so I just reset my phone. Simple enough. But when I turned it back on, the the corners were flashing white. Not very bright, but it's annoying to say the least. So if anybody has this problem and fixed it, please help.

Is it illegal if it look like I'm selling stuff?

After i left the mall today i continue on jogging on my stilts downtown Chicago to the train station and 2 cops stop me asking me question, wanna my ID and wanna a permit to walk the streets. How can i have a permit if i only went downtown to shop? I'm rich and i buy stuff everyday and then the cops telling me they might need to kept my light sabers cause they think i sell them to people. And i tell them i'm rich i only like people looking at me also who would buy my light sabers? They are not the one made in store. They are the expensive one cost $200 just for 1 light saber and the cops believe me cause there no way i would sell these.people that do sell light sabers are the cheap gay ones for like $10 dollars. I don't sell nothing i only show off cause i want people to know i have money to buy what ever i want. I get happy seeing people getting off work and showing off that i'm rich and i don't need to work much cause my job give me to much money. And i get happy when people take pictures of me everyday. Then the cop told me if my light saber were stole? So they wanna to check the license on them which i don't know if there's even a license on my light saber. And if they are stole they will call me. Lol they can't be stole cause i bought them online from think geek.com. Then after they let me go i started telling them did you notice all my 6 iphones tape to my backpack? They didn't care about looking at them also i show them all my picture of what i do. The pictures of what i do got the cops from not putting me in jail. Also he wanna me to stand still, lol i can't stand still on stilts. What i think for the cops to stop me cause they are jelious and poor. I wish i could rip couple of $100 dollars bills or burn them on fire to show them i have to much money in my bank.

Is it illegal if it look like I'm selling stuff? - 1

After i left the mall today i continue on jogging on my stilts downtown to the train station and 2 cops stop me asking me question, wanna my ID and wanna a permit to walk the streets. How can i have a permit if i only went downtown to shop? I'm rich and i buy stuff everyday and then the cops telling me they might need to kept my light sabers cause they think i sell them to people. And i tell them i'm rich i only like people looking at me also who would buy my light sabers? They are not the one made in store. They are the expensive one cost $200 just for 1 light saber and the cops believe me cause there no way i would sell these.people that do sell light sabers are the cheap gay ones for like $10 dollars. I don't sell nothing i only show off cause i want people to know i have money to buy what ever i want. I get happy seeing people getting off work and showing off that i'm rich and i don't need to work much cause my job give me to much money. And i get happy when people take pictures of me everyday. Then the cop told me if my light saber were stole? So they wanna to check the license on them which i don't know if there's even a license on my light saber. And if they are stole they will call me. Lol they can't be stole cause i bought them online from think geek.com. Then after they let me go i started telling them did you notice all my 6 iphones tape to my backpack? They didn't care about looking at them also i show them all my picture of what i do. The pictures of what i do got the cops from not putting me in jail. Also he wanna me to stand still, lol i can't stand still on stilts. What i think for the cops to stop me cause they are jelious and poor. I wish i could rip couple of $100 dollars bills or burn them on fire to show them i have to much money in my bank.

Will Apple repair my iPhone 5?

I opened up my iPhone 5, and tried to unscrew the screws holding down the plate of the ribbon cables. I didn't have a screwdriver that fit so I just closed my phone back up.however, now the screen seems to be unconnected from the phone. Plugging my phone in, my phone still makes sounds. I'm thinking there's a problem between the connection of the screen part and the rest of the phone (might be in the ribbon cables?)
I know that you lose your warranty from opening up the phone, but will Apple still repair if i opened it? Or where should I take my phone to?

How to get my mind off this?

I can't sleep at all because I'm excited about getting a new iPhone and this is pretty pathetic but I can't.
I might not even get one and IF I DO it'll be like in December so I don't know why I'm so excited but I can't sleep
Any tips?!

My iPhone won't work as a phone?

I found my iPhone in the city, I took out the sim card, but when I put in my own sim card it won't work.
Whoever owned it before me must have locked it from the phone service company. Please Help I'm DESPERATE FOR A GOOD PHONE AND NOT A NOKIA

Is 1 gig per month enough for the iphone 4?

So today i asked at a optus shop for an iphone 4 and they said for 40 dollars monthly you will get like 200 and somthing minutes worth of calling and i think unlimitted text but 1 gig per month. I don't know if this is enough, my parents said it wasn't but i see on the internet that it is. All i will do is go on internet when i'm not home. Surely 1 gig won't take that much. Like i'm only going to go on facebook/qoohme etc.

Added (1). And also if i'm out i would only be using it for maybe, 10 minutes not even but nothing more? Is that still enough gig