Friend sent me this link, it's a shopping list app for the iPhone specifically for Aussies
They add the weekly specials from Coles, Woolworths and IGA as well
When you're writing your list items, any specials containing those words appears so you can pick which place has the cheapest groceries!
You can also add items from a normal web browser or your iPhone, so multiple people can access and update the list from anywhere, anytime. Add from work, add from home, add from iPhone. Pretty kewl app!
http://www.mygroceries.com.au