This week's giveaway is in the EJB and other Java EE Technologies forum. We're giving away four copies of EJB 3 in Action and have Debu Panda, Reza Rahman, Ryan Cuprak, and Michael Remijan on-line! See this thread for details.
They're different on both systems. Different on a Mac too. Check out this this topic for the platform-independent way to code, and avoid using applications that don't recognize other system's EOL markers (I'm looking at you, Windows Notepad).