I started looking into it more and found it's based on some books by Steven Gould. Apparently he had already written two books, Jumper and Reflex, and then a third book was written to fill in the gaps for the movie. All three books are up on Amazon, though the third book, Griffin's Story, got some not so great reviews. All the negative reviews say the first two books were much better.
The trailer really is quite good...I've already got my hands on the books because it looked so interesting. And Sam Jackson's in the movie, so how could it suck? :}
More stuff about the Jumper movie