This is a trademark (not patent) dispute, which makes a little more sense, since you need to protect your trademarks or risk losing them -- but it seems like quite a stretch to suggest that people are going to confuse a device called the BlackBerry with a device called the BlackJack. If Samsung had named their device with "Berry" it might be a more believable case -- since the "-Berry" suffix is more closely associated with RIM's device. However, the odd part about this is that it effectively helps Samsung a lot more than it hurts them. Samsung should be thrilled about this lawsuit, which is generating a ton of free publicity for their new device, which otherwise probably wouldn't have gotten all that much separate attention. Even better, it's being compared to what's considered the leader in the market. In RIM's attempt to defend their trademark, all they've really done is helped promote the competition.