I could care less about Jailbreaking. Apple doesn't even care about it. Jailbreaking doesn't hurt Apple in the slightest.
Are you kidding? Apple does too care about jail-breaking. It prevents them from controlling the iPhone experience not to mention they'll miss out on a percentage of every application sold in the forthcoming Cydia store.
If Apple didn't care about jail-breaking they wouldn't be filing briefs with the U.S. Copyright Office declaring it a copyright violation and arguing against exemption.
http://www.pcmag.com/article2/0,2817,2341085,00.asp