Xoom corporation is suing Motorola, saying it can't call its tablet the Xoom. While the Xoom tablet was released only 2 days ago, Xoom corporation has been operating online payments much longer, and has owned the domain http://www.xoom.com/ for 8 years.
I think that both Motorola and Xoom corporation should be allowed to keep the name Xoom. After all, how many people are going to buy a Motorola Xoom to find online payment services? Tech companies have often used names of other brands without getting sued. For example, Evo is the name of a winter gear company that has owned http://www.evo.com/ for a very long time, yet HTC still named their phone the Evo 4G.