You can jailbreak any iDevice by using the appropriate tool for your iOS.
You can use this chart below to find the appropiate tool for jailbreaking your iPad. Be sure to find the correct iOS under Firmware an the correct version iPad under Hardware
Name Release Date Hardware Firmware Untethered? Developer(s) JailbreakMe3.0 July 5, 2011
5.1.1 Yes pod2g, Chronic Dev Team, iPhone Dev Team evasi0n February 4, 2013
6.0-6.1.2 Yes pod2g, MuscleNerd, pimskeks, and planetbeing (evad3rs) evasi0n7 December 22, 2013
7.0-7.0.6 Yes pod2g, MuscleNerd, pimskeks, and planetbeing (evad3rs) p0sixspwn December 30, 2013
6.1.3-6.1.6 Yes winocm, iH8sn0w, and SquiffyPwn Pangu June 23, 2014
7.1-7.1.2 Yes dm557, windknown, ogc557, and Daniel_K4 (@PanguTeam) Pangu8 October 22, 2014
8.0-8.1 Yes windknown, ogc557, Daniel_K4, zengbanxian, INT80 (@PanguTeam) TaiG November 29, 2014
8.0-8.1.2 Yes TaiG
Yes it can.
You have to have a jailbroken ipad and the app installous
There are many. The iPad must be 'jailbroken'. Jailbroken iPads are vulnerable to exploits, viruses and poorly written apps that can affect the iPad's stability or performance. Doing this may also affect your Apple warranty.
No. Updating the iPad's firmware will remove any jailbreak that has been installed.
It depends which iPad you have. The First Generation iPad can be Jailbroken using redsn0w (search on google) and the 2nd/3rd Generation iPads can be Jailbroken using Absinthe 2.0 (also search on google for download links, you need a pc for both methods)
Yes, you can bring a jailbroken iPod, iPhone, iPad, etc. into the Apple store and get it checked out. They 99% will give you a new product.
if jailbroken you can make the ipad detect a blue-tooth mouse changing a few settings... jailbraking = void guarantee
You can; use the App Store. Alternatively if your iPad is jailbroken you can also use Cydia to download applications that Apple wouldn't ever approve for their own store.
It is possible if you have jailbroken your iPad to install software that allows for external control, file deletion and general bad-things-might-happen. If you are using iTunes to sync your iPad, then no.
Only the cost of your 3G dataplan, including possible overages.
There has not been an iPad virus yet for non-jailbroken iPads. The way that memory is segregated with each application makes it almost impossible for any application to change others or install background applications.
No, emulators are always only installed in jailbroken iPads, as they require ROMs and programs which are pirated.