Hearthpwn

If someone get key in Sweepstake will they send it to Home adress or @mail?

They will e-mail it. Why would they spend thousands of dollars on mailing keys to people when e-mails are free? And to answer your intentions, yes, you can make a ton of battle.net accounts and sign up for beta on each one of them.

I want a key please my life sucks this will make it better :)

doing that wont help your chances at winning though.

IP is right there in the specs you send to blizz when you sign up for beta