"decent upgrade"4.0 starson by canon all right
Pros: Canon's 9-point AiAF (Artificial Intelligence Auto Focus), 1 megapix improvement, black body, larger LCD
Cons: still no manual focus ring?
Summary: i own the S2 IS...it isn't the perfect camera out there as most seem to believe its the best...it has one glaring defect - poor focus in low light conditions (others who are intermediate-advanced users have also pointed this out). when you autofocus, the object must be inside the focus box which encompasses only a small portion of the picture...although you can move the box around a little bit, you can't quite move it to the edge to get some difficult angle shots...the S3 seems to address this problem with their new 9-point AiAF which isn't on the S2 and is supposed to provide excellent focus even when the object isn't in the center. even lower end models have a multifocus option that the S2 lacks.....if you haven't bought the s2 yet and are deciding b/w s2 and s3, spending the extra bucks is worth it if u are more than just a novice photographer