The iPhone 4 doesn't come with Instagram already installed on the phone, but you are certainly able to download the Instagram app from the Apple Store.
Yes and no. It is an exclusive application for iPhone 4S only, and it comes with it already, as the other factory apps such as Camera, Phone, Messages, Facetime, ect. You can't download it through App Store, and you won't need, if you have an iPhone 4S, as you will already have it installed. If you own an older iPhone or iPod Touch version, you can theorically have Siri installed, but only if your iDevice is Jailbroken. Search what 'jailbreak' is on google :) Hope I helped.
I had this problem too. I had iTunes installed already, but when I tried to sync my iPhone, nothing came up on my iPhone screen. I quit iTunes, and unplugged my iPhone, then plugged it back in and opened iTunes again.
Internet Explorer is not available for/compatible with the iPhone. Apple's default browser is called Safari and is usually already installed on the iPhone upon purchase. You can, however, purchase/download browser apps (e.g. Opera) from the App Store.
what it means is to add features to ur iPhone or iPod touch that u wouldn't normally have already installed without cydia.
There is no way that you can download FaceTime on the iPhone 4S. FaceTime comes already pre-installed on the iPhone 4S. You can turn on FaceTime by going to your "Settings" and choosing the "FaceTime" tab. Then, toggle the switch to turn FaceTime to the "on" position.
Yes, you will.
On the App Store. It should be installed on your iphone right after you buy it. The iphone should be at least 3G or later.
It already does.
Already is.
Safari can in fact be installed on an android tablet, as it can be downloaded from the pre existing already installed browser and can then be installed through the third party app "App Installer".
you need to be jailbroken and have winterboard installed