Strawberry Singh is on a horse. A rideable, Bento skeleton-based horse that she's sneak-previewing, to be exact, enabling far more horse-like animations. The Second Life horse industry is already large enough to provoke real life lawsuits, and now that virtual horses can be even horsier, it's likely to grow far larger still.
This particular horse comes with some special features, says Strawberry, as this video shows:
"You can change the textures on it and make it look like a completely different horse. I played with that around the 3 minute point. But my favorite part of the horse is the gestures, I showed them around 5:09. And you can ride it around using Second Life movements, the arrows and such. I started the riding around 7:48... This is my first experience with a riding animal in SL and it is SO MUCH FUN!!!"