You dont' NEED it, but it's awesome. It's jailbreakable, looks awesome, sleek, smooth, shmexy! Etc... And I mostly just like the jailbreaking part :P!

???

You can hack it... Lol. That's what jailbreaking is. It means you can store things on it like a NES Emulator + other games + bunches of other stuff you can only get by jailbreaking...

sweet