Should I buy an iphone or ipad mini?

Should I use an average phone and buy an ipad mini to use for mainly internet browsing, apps, and for viewing pdfs and word documents

OR
Do I buy an iphone 5 to view in a smaller screen but have the phone and the software features in one?

Unlocked Iphones/ International cell services?

I'm going to Germany in September for ten months. I would like to take an Iphone that I will get set up with a carrier over in Germany because I feel Iphones will be more expensive to buy over there. I was wondering if anyone knew which carrier I should buy for getting it unlocked or even if an unlocked Iphone will work while I'm there. I don't want to get an Iphone there and have it not work while I'm there. It would be a big waste of money that I don't really have.

Somewhere to buy the iphone 4 case?

Yeah, could someone tell me where to buy the iphone 4 case? Now I need to protect my new iphone, so could someone give me some suggestions?

I need a good app for my iphone that i can call people from?

So i have an iphone but my mom cut my service and sometimes i need to call people and i need a good app that doesn't require an actual phone number and that doesn't make me watch adds to get minutes! SOMEONE Please Help! & i talk for hours with people!

Somewhere to buy the iphone 5 case?

Could someone tell us where to buy the iphone 5 case? I need to buy one to protect my iphone, so anyone could suggest anywhere to buy that?

Mine Craft Help! How can I stop floating?

I'm playing the Minecraft Lite version on the iPhone 4S app. And I keep floating in the air, I want to know how can I stop floating and walk normal, this is the second time this happened to me and I don't know how I stopped it the first time… Please help me!

Added (1). Also wanted to add that I'm playing in creative mode.

Why doesn't my iPhones Wi-Fi work anymore?

I have recently tried to connect to 3 different Wi-Fi connections and it always says unable to connect, I tried (rebooting, forgetting network, I have the newest firmware) I just can't find what's wrong please help I don't have any warranty or anything