It seems like both Dell and HP like the MacBook Pro Unibody design.
Here’s the new Dell XPS 15z versus MacBook Pro 15:
(Image from Engadget)
And here’s the new HP EliteBook 8560p versus MacBook Pro 15:
(Image from Notebookreview forum)
As you may have read HP consumer PC sales dropped 12 percent in Q1 2011, while at the same time Apple Mac sales increased with 28 percent. It’s easy to see how they must have reasoned internally regarding the re-design of the Elitebook laptops.