How to make a realistically looking and behaving sponge

Hi there :
this is a video tutorial on how to model,texture (and add soft body properties to ) a realistically looking and behaving sponge

Here's the link to this tutorial :
http://www.youtube.com/watch?v=YCg3TDJzK3c&list=UUKDe8_5_-j7HvyS6p0QLlaA&index=5

Hope you’ll enjoy this!
Peter