It depends on your particular flavor of CS. The less-theoryish flavors, like games or graphics, definitely do seem to be accepting of Word, and I've been to a couple conferences where Word was more prevalent.

Personally, I can't stand Word as an editing environment, because it doesn't offer a way of writing without worrying about formatting at the same time (seriously, if it had a markup view, I'd probably switch), and citation support is still a huge pain in the ass. However, LaTeX has many, many more pains in the ass for most people.