Play with sand

It's possible to develop game that reproduce sand/dust physics?
Like this:
http://appbank.us/iphone/ipad-iphone-sand-play-with-sand-the-movements-are-so-real-you-can-even-make-a-sand-clock
Like this:
http://appbank.us/iphone/ipad-iphone-sand-play-with-sand-the-movements-are-so-real-you-can-even-make-a-sand-clock
Comments
----------------------------------------------
http://davidgriffinapps.co.uk/
""You are in a maze of twisty passages, all alike." - Zork temp domain http://spidergriffin.wix.com/alphaghostapps