2 questions about ipad2

Hi i bought the iPad2 today...

My iPad2 runs ios version 5.0.
is un-tethered jailbreak possible for my device..
if possible, what tool would u recommend

also, i would like to read pdf files. i downloaded iBooks, but i do I copy pdf files from my PC to my ipad so that I can read it on my ipad

-thanks

Yes, you can check out GreenPoin0n for the jailbreak. Just google it. and for pdf, there are many options, I use dropbox, it is easy to put files from your pc on it then open it up on your iPad.