I’m probably not the only one who bought Canon S95 and noticed that Lightroom doesn’t recognize it’s RAW (.CR2) photos.
There is a little “hack” which you can do with exiftool (You can find that on http://owl.phy.queensu.ca/~phil/exiftool/.
Just tell exiftool to change canonmodelID info to Canon S90:
exiftool -ext cr2 -canonmodelID="PowerShot S90" dir_of_your_cr2_files
and after that LR should recognize your raw files.
Thanks to Phil Harvey about this tip and also about whole exiftool software.