Camel spiders are actually a member of the scorpion family but, they are not as aggressive as one may think. No, they don't eat your face. Yes they move fast and can jump but most of the time they are looking for shade or a free handout, they get their name because they are found in the same areas as camels not because they eat them. I have had one or two follow me in the desert, if you leave them alone, they will usually leave you alone. Either way, they freak me out and I think they look like an alien of some sort. Check out the following link for more.
http://www.snopes.com/photos/bugs/camelspider.asp