There is a mode in Sony NEX camera called
Handheld Twilight that takes 6 images at high ISO and merges them so that noise is very effectively removed. Recently I found a software that lets you do it in a very simple manner. It can merge 2-6 shots and resulting image has much more details and lesser noise compared to the original shots. It also fixes small deviations in alignment so it may be useful for some point and shoot users here
Oh BTW the name of software is Oloneo PhotoEngine.
@nac I bought SX240 at 17.5K.