The speed with which new toys come out is truly dizzying. Was it just this January that Casio's EX-F1 was being talked about excitedly because of it's ability to do super-slow motion? And now, heres the EX-FH20 offering similar features in a smaller footprint. It's available for $599 from several online reatilers.
Unfortunately, assuming that the video quality is similar to the EX-F1 (which went way down in resolution and way up in noise as the frame rate went up) it's ability to capture short sequences at high frame rates is not that useful. Fun to post short sequences on the web - maybe - but probably not much use for anything else.
It does claim 720p (1280 x 720 pixels) video though.