But that doesn't really matter, you can adopt concepts and designs from 3rd parties (including competitors) so long as the same is not protected.
The "rounded corners" was patented and infringement of the patent was a count on the lawsuit, and Samsung was found liable for infringing that patent.
What is unfortunate and "twisted" is claiming a research university is a patent troll. Research universities develop and patent new technology all the time, you could say its part of their business model, and historically they are happy to license their patents to commercial entities to take to market...very rarely do universities actually develop their new inventions for commercial purposes. Most would consider it a win-win to shift costs of development to universities, not universities being patent trolls.
