Let me fill you in on something we've learned in the past year: PC gamers do not like DRM. EA was reminded of this the hard way, and every PC release that includes SecuROM inspires legions of gamers to claim that they'll refuse to buy the game because of the program's inclusion. Ubisoft has heard you, and the retail, boxed version of Prince of Persia on the PC has absolutely no copy protection. It's doubtful the company is doing this out of the goodness of its heart, however.
"You're right when you say that when people want to pirate the game they will but DRM is there to make it as difficult as possible for pirates to make copies of our games," Community Manager UbiRazz wrote on the official forum. "A lot of people complain that DRM is what forces people to pirate games but as PoP PC has no DRM we'll see how truthful people actually are. Not very, I imagine." He goes on to note that only retail copies are DRM-less, since the Steam-bought version will, of course, to be tied to Steam's authentication system.
Ubisoft has already had its eye blackened a few times recently when it comes to DRM and piracy. Assassin's Creed suffered from a shoddy PC port, and the game constantly tried to authenticate online, causing problems for players who bought the game. "The address is 216.98.48.53:3074 random local, 3 attempts every 75 seconds, registering to Ubisoft in Ontario. DRM messing with honest patrons again... as long as the game is running it will keep hammering away at that address," one forum member wrote. Gamers often had to shut off their Internet connection to play the game.