The SX100 has since been replaced by the SX120 IS. Here's what we had to say when the SX100 first came out in October 2007:
Meet the Canon Powershot SX100 IS, the first new offering in what should prove to be an exciting compact zoom line. The SX100 IS is looking to compete with Panasonic's TZ3, giving consumers a large, 10x optical zoom lens in a tiny, compact body. Lenses get longer and packages get smaller; there's no stopping this trend. So check out the SX100 IS, and get more from less.