There is no such thing as 'installing' an iPod Touch.
no
Yes, the iPod Touch 32gb comes with pre-installed applications. The apps that come with the iPod Touch pre-installed are:SafariCalendarMailContactsYouTubeStocksMapsWeatherClockCalculatorNotesSettingsApp Store
no
You can install free text messaging apps, but you have to pay for minutes to call people on the iPod Touch.
No, however the ipod touch 4g has two cameras on it
tons of them
No, there are not extra charges for any application on the iPod Touch.
you cant
No
Sometimes depends if the apps that you install have bugs
first u transfer those applications on that other persons i touch to the computer on itunes and then u transfer those applications to ur own ipod touch ps. ur gonna need a computer and itunes