I dig it too. It is played much like a shaker but it does not replace my other triangles. It has a bright light sound. It adds nice options for a multi percussion attack all at once. It would be nice if there would be additional sizes in the future.
Perhaps someone could customize other triangles using this idea.
I would like to know what those samba players think of this. They are the triangle masters!
I agree this looks like fun and I do enjoy mine. I am glad that I am not the only one who plays percussion in the car (this, shaker and tamborim) while on the road. My wife thinks I'm a nut because of this. (She's right, so what)
Keep it fun.