I just made soap with it too - an adorable little whale soap - and it worked out well for me too. Phew.
We got a grab bag returned today by Fed Ex (damaged in transit) and one of the mysterious white blocks was in it so we could play around with it and make sure that it was soap.
I just emailed the photo of the soap to my TwitPic account:
http://twitpic.com/photos/brambleberryso it should be there any second now. It's a cute little whale. And, proving that everything does happen for a reason, if we hadn't been trying to figure out what the amazing mystery white stuff was, we wouldn't have found 40 of a long forgotten, adorable, whale soap mold hidden under a shelf in the warehouse. Yippeee for serendipity working out in our favor.