If you're looking for the ultimate ultracompact point-and-shoot, the Sony Cyber-shot DSC-TX200V is probably it. Too bad its price tag is ridiculously high.
Sony's slimmest Cyber-shot, the DSC-TX66, is a fun and powerful snapshot camera that might be too small and have too many megapixels for its own good.
As long as image softness doesn't bother you, the fast-shooting Sony Cyber-shot DSC-TX9 is a quite capable camera for taking photos under a variety of conditions without much effort from the user.
The fast-shooting Sony Cyber-shot DSC-TX7 is a slick, feature-laden ultracompact, but its price doesn't guarantee perfection.
The Sony Cyber-shot DSC-H55 is a compact megazoom camera that is capable of taking some excellent photos, just at a leisurely pace, but at a good price.
It's not the fanciest camera, but quick performance and solid images make this sub-$200 shooter a worthwhile pick.