Before anyone jumped to the conclusion that this Casio Exilim EX-FS10 is not a new model and is available in US already, I will need to clarify. Yes, it is already available. However, this new Casio Exilim FS10S has an additional function. It helps golfers evaluate their swing by showing golf swing lines.
So, what is the differences between Exilim EX-FS10 and EX-FS10S? According to Akihabaranews, the main differences is the firmware.
I went to Casio website and based on the Exilim EX-FS10 model to have a look at the spec. In my opinion, even without the Golf Swing Guide function, this Casio Exilim EX-FS10 is going to be a great help to golfers. It has a HS (High Speed) mode that can take video at 1000 fps, 420 fps, 210 fps and 30 ~ 210 fps. Quite amazing.
BTW, the Casio Exilim EX-FS10S will be available in Japan from 26th November at 34,800 yen (with tax). On the Press Release, it states 5000 units only and has two colors, White ((EX-FS10S WE) and Red (EX-FS10S RD).
Here is some pictures of the EX-FS10S
Here is a video I found at Youtube that is doing a golf swing at 420 fps.