You can already download the free version of pulldownit for Max 2011, 32 and 64 bits.
also take a look to the tutorials/demos with the new pdi 1.5:
Glass breaking: http://www.youtube.com/watch?v=4YavYT6sulQ
Shatter a log: http://www.youtube.com/watch?v=oEJapRz6k40
Multipath shattering: http://www.youtube.com/watch?v=HuV-RNHxZFc
cheers