techforus

It depending on how many apps and what is that. Some app is running in background and take of you much RAM and make device running slow. If there is any unuse app, just removed it.

I'm using the Safari as default. But I read a new that Mozilla will release the version of the Firefox for iOS soon.

I'm have a lot of followers people on Google+ and it's totally useless.

I prefer Intel than AMD and suggest you too.

It's depend on what do you want to do with Facebook. Just using it as social website or marketing for something else ?

You mean installation iOS in iPhone or just a phone ? If just a phone, there's no way to do.