For those not familiar, Gorilla Glass is super strong, scratch resistance, super glass from Corning. Here's Corning's demo of the glass at the 2011 Consumer Electronics Show.
Gsmarena and Infotech are both reporting that the Samsung Focus Flash is fitted with Gorilla Glass. The Samsung Focus S is being reported as having Gorilla Glass via Samsung's Online Support. Granted online support reps have been known to be misunderstood, but with the Samsung Focus S being patterned after the Galaxy II (which has Gorilla Glass) this isn't too far a stretch.
We have inquiries out to Samsung and if we hear different, we'll pass it on. Samsung has strong ties with Gorilla Glass and Corning using the damage resistant glass in Windows Phones, tablets, and Android devices. It shouldn't be any surprise if Samsung's latest Windows Phones aren't following suit.