Yes, you can. Download an app from the playstore which can transfer app files to external memory. But keep in mind, all apps cannot be transferred.
yes ovbiously
You have to click on iTunes store then apps
no
Yes, there is a way of transferring some apps to the external memory card and still function.
Go to the application manager and you will see the option of moving the games and apps from the phone memory to the external SD card in Nokia Lumia 520.
If you are using an asus tablet and wish to delete certain apps, then all you must do is navigate to the task manager in the main system settings and find the app in question, and click "uninstall".
It is an interface that allows differ apps to share ur webcam
Internal is normally dedicated to the phone and it's OS. For such use as adding more apps, texts, contacts. External is more pointed at using it for your own personal media. although on smartphones you can point apps to be loaded from the external memory. other factors are if you can take the memory out of the phone. Internal meaing you can't and External meaning you can. This is normal in the format of a memory card. (SD, Micro SD etc)
They are, but they also slow your iTouch down. One reason Apple doesn't allow certain apps in the app store is because they require a whole LOAD of memory. Jailbreaking also slows it down, even if you don't have any apps.
You can get apps from the Internet but they redirect you to the i tunes store.
There is no limit for how many apps you can have. That said, memory space will limit the number of apps you can have on the NDSi.
You can get new apps in the app store