This camera has many good sides, but rying to overcome Panasonic's LX3 is a difficult feat:
"Ultimately the Lumix LX3 remains a highly compelling compact for enthusiasts and one which is superior overall to the S90 in several key respects, so long as you can live without telephoto coverage and the smaller body. The biggest problem facing the LX3 though is not so much the S90, but sheer availability.
Like many Panasonic models – especially when they become over a year old – it can be unusually difficult to find broad supply. High demand and short supply have also ensured prices on the LX3 have remained relatively high for a digital camera that’s over a year old, whereas the simple truth is Canon’s greater supply will almost certainly see prices on the S90 fall below the LX3 over time."
Link