Dr Dre Beats Solo HD Control Talk and Volume?

I have a pair of Beats Solo HD (Red) and the control talk and volume control won't work on my devices, I've tried it on my Iphone 3GS, Ipod and Nexus 7 and it doesn't work.Am I missing something in which I have to enable it in settings or something?

Buying an iphone 5 unlocked?

I have the samsung skyrocket with att & I plan on buying an unlocked iphone 5 will my sims card from my phone work or what will I have to do?

What is the difference between the first iPhone and the iPhone 5?

I would only buy an iPhone if it was cheap, and i see on eBay you can get the first one for £100 or less, so if I could buy the first one for that, whenever the iPhone 5 costs like £500+, what have they changed to make it so much better. All i can see that people use them for are useless apps and games like temple run, which i presume most of which you can get on the first one anyway.

How to recover deleted iMessages?

My iphone automatically syncs to iTunes & iCloud and I remember when I got my new phone, I got all my old messages back but I forget how.

Best quality bluetooth helmet?

I'm looking to buy a new motorcycle helmet, but I'm unsure which to get just because I'm looking for something very specific. I'm hoping one of you has a good recommendation!

- First, must be a full helmet. Modular or not isn't a big issue, in my opinion.
- Visor must at least be fog resistant. I don't mind wearing my sunglasses but a tinted visor would be nice.
- High quality speakers. I love listening to music and do so through my iPhone. I want to be able to hear the music even if I'm doing highway speeds. This is really where I'm having trouble. I don't require any sort of microphone or whatever. I just want good quality speakers.
- Control buttons are optional.

I'd also prefer black (to match the bike) and a medium size.

How to upgrade my iPhone 3GS with ios4.2 to latest ios?

I was using my home pc to connect my iPhone 3GS and sync. All my contacts, apps and other necessaries are in that pc. But now I left my home to the hostel. I have another laptop now. How can I save my things and sync it to the new laptop? Also I need upgrade my ios 4.2 to the latest version. How can I do it via iTunes. How much size will it be? Please help me in a step-by-step way. Also what will I do if I lost the internet connection during up-gradation?