when i try the unity 3 beta ,i can't find the softbody ,even in the manual .
i would like to know where i can find this function .
also i failed to add skinned cloth to my mode , when i add this component ,the mode disappared ,
i had tried to add the correct mesh ,but it didn't work also ,
but it is ok when using interactive cloth .
However, what you can do, is to use inflated cloth objects, which will create somewhat similar effects. Create a GameObject with InteractiveCloth and ClothRenderer components, assign your mesh, and play with the "Pressure" value, to inflate the cloth object with air.
I don't understand what your problem with the SkinnedCloth is, what disappears?