IPhone 4 temprature warning?

So I work at a pool and yes my phone was in the sun for maybe like five minutes. When I picke it up it had the temprature warning. Then went away. I have read some places that the phones do that without being even hot. My question is should my phone be okay?

Do apps count as data on a iphone?

Like for example you want to use the facebook app for the iphone that of course is the internet dose that count towards your data or no? Is data just like you went on safari to search something

How to delete picture from my iphone?

Okay so i download whole bunch of photo to my iphone using itune on my computer and when i go to my phone to deleted certain picture they wouldnt let me cause there's no delete button is there any other way?

What router to get? Dual band?

I've just got the interent in my new flat and the service provider (sky) have given me a router but the range seems poor.

I currently use my iPhone and PC through the wireless and my xbox through the wires connection.

My PC is too far away to be wired so I bought a wireless adapter (TP-Link TL-WN951N Advanced Wireless N PCI Adapter).

The card can work up to 5ghz so i would like to get a router that can pump that out. My understanding is that if the router does work at 5ghz that means devices that don't support that won't work with it? (iphone etc)

Would i need to get a router that puts out both 5ghz and the normal (2.4ghz?)?

2010 Toyota Corolla Radio Problems?

My car was just purchased 3 months ago. I've been having issues with the radio. It spits out my CDs, the screen turns blank, and if I touch other buttons it shuts the radio off. I mostly listen to my iphone through my aux cord and when I went to listen to the radio for a change, it did all this within 5 minutes. I'm a college student and don't have a lot of money. Is there a quick fix for this or am I going to have to sell my right arm just to fix it?

Do plastic iPhone cases scratch?

I'm considering buying a plastic case for my iPhone 4s, but I have a few questions.

Do the plastic iPhone cases scratch easily? My case will have a picture on it, so I'm wondering if the plastic would protect the picture from being scratched.

What should I buy with $100.00?

I have 100 dollars, I want to buy a iPod nana 6th gen, or I want another penny board. I have an iPhone 4 already but I also already have a penny board, if I'm going to spend the money I want to get what I will have the most fun with.