Managing more than one iPad with computer
I have an iPad that I manage through my laptop. Now I'm planning to buy another one for a friend who isn't comfortable with setting up an iTunes account, preparing the iPad, etc. I'm thinking maybe I can use my laptop to sync his new iPad. I've read somewhere that I can have up to two iPads managed by the same iTunes in one computer.
How can I do that?
Can I transfer apps from my iPad to his using iTunes?
Can I de-register his iPad later, after I'm done with it?