Yes. Though at the moment the process is a bit convoluted. I've bought several keys as gifts/prizes etc. and the process I went through was as follows: Go to the Uber store and buy a copy of the game. You'll get an email with confirmation and a link to 'my keys' - your key will be a series of letters and numbers you can view there. When the time comes (I presume this is for Christmas?) give your brother the key via whatever method you deem suitable. Your brother must then create an Ubernet account, and activate the PA key himself. The key will still be 'registered' to your account, but your brother's Ubernet account will have full access to the PA Beta.
The other way to do it is if your brother has steam you can buy it as a gift in the steam store and give it to him that way. You can do this by going to the game on the steam store and adding the game to your cart then when you go to the check out you may chose to purchase as a gift instead of buying it for your self.
out of curiosity, if I buy several keys and distribute them to friends (which I have done), and they activate it through Steam, are they still able to play PA through the Uber launcher? Just in case some have issues with performance, I've heard the Uber launcher is better.
Yes, they need to play though Steam at least once or link their Steam and UberNet accounts manually HERE. After their accounts linked they can use Uber launcher.
