I'm not a fan of frivolous lawsuits (hot coffee in the lap) because they generally take time away from lawsuits with real merit (asbestos, guns, cigarettes, etc). Most recently lawsuits have been lodged against Apple for the iPhone - One for the antenna issue and the other for the AT&T iPhone exclusivity. The first one is clearly an idiotic attempt at a money grab. Sure it's proven that holding the phone a certain way causes you to lose bars (I can't seem to reproduce this issue but others I know have) but so what? If you don't like the way your phone behaves, return the phone for a full refund. You haven't been damaged in any way that would require redress via a lawsuit. That would be like me buying a pepperoni pizza that didn't have enough pepperonis on it. I'd either suck it up or return it for another one that had enough pepperonis. If the pizza place couldn't deliver me a pizza with enough pepperonis on it because of a design flaw in their pizza making process, I'd just go but a pepperoni pizza from another place that could deliver me a pizza with the required number of pepperonis.
The second lawsuit is one that definitely will be beneficial should it prevail. Having the iPhone on multiple carriers will create more competition in the wireless marketplace forcing AT&T (and others) to compete more on price, service, etc. If nothing else, it'll mean that iPhone users will be dispersed across multiple networks so that the strain won't be on one network. To keep with the pizza analogy, this would be like if you could only order a pepperoni pizza from one place. Not to say that the quality of the pizza or the pizza place was bad but it's easy to see that if more places could offer that pepperoni pizza to their customers, this would benefit everyone in terms of more options, faster service, etc.
Dang... I'm hungry now.