I am extremely skeptical that a lawsuit that few people are even aware of will have any effect on either company's brand image. A lot of Apple's products could be called "iconic" - people with little interest in technology differentiate between an iPhone 3GS and an iPhone 4. I'd be surprised if anyone could tell a Samsung from an HTC. A lawsuit isn't going to change that.
Here in Uruguay they definitely will - and it is Samsung phones which sell the most, by far (we're very price sensitive which is a nicer word for poor :P ).