Have you Jailbroke your iPad 2 or iPhone 4s yet?... if so why?

Hey have you jailboke that iPad 2 or shiny new iPhone 4s yet? If you did why? What is you favorite cydia app or hack or something you just have to do to your jailbroken iPad/iPhone? Please leave a comment below.

I am a avid iPad user ( I own an iPad 2 64GB) and mac enthusiast and I Pride myself in my obsession of jailbraking and hacking up crap. I also run windows 8 DEV preview on an older pc. Also have an iPod touch 3gen 64GB and 3-4 older iPods.