Polymer crystals.

I am considering using polymer crystals when i amend my soil for an outdoor grow. They seem like a fantastic idea. Anyone have any ideas on this.

Check it out ---> Howstuffworks "How do polymer crystals work and why do they absorb so much wate"

there really not much different then peat moss and perlite,

Perlite? Perlite doesnt hold 30x its mass in water, and last time i checked everyone else was using perlite for water drainage and to give air to the soil.