Why do you care? Likely you don’t since only a small percentage of owners actually jailbreak their iPhone. Even myself (although I don’t have an iPhone) once jailbroke my iPod due to the number of VERY useful apps I could get in the “free market.” Still, I rebuilt my iPod and left it “locked” because the Apple started offering many of the apps I had on iTunes.
However, this really isn’t about Apple and iPhone, this is about the DMCA in general. This stance, if it is approved by the courts, set a precedent. That precedent is that you can’t use stuff you buy the way you want. So most people will just say “so what.” With iPhone I kind of agree. Apple gives a majority of the people what they need and a slightly majority what they want via iTunes. Still, what about other things you buy.
Think about a few items in your house right now and imagine if all of a sudden the makes tell you how to use it. Your coffee maker will only take coffee from certain makers. Your toaster will only toast certain brands of bread. Your car will only allow you to put in “super” grade gas. It may seem ridiculous but I bet 50 years ago people would look at things today and find a few of our everyday experiences ridiculous.
Link: Apple Says iPhone Jailbreaking is Illegal | Electronic Frontier Foundation

I agree the fact that it is illegal will not impact the current jailbreaking movement, locking down technology rarely works. The issue I have is the precedent for allowing hardware (or “goods”) manufacturers to limit consumers use of the product they purchased and the justice system supporting them.
they’ve been saying that since the phone was launched. No surprise there. Do you see any jailbreakers stopping? Including the iPhoneDevTeam? Probably not going to happen.
Mike