Google has not come up with a way to share Google Tasks yet. However, someone has created a service that will do this for you. Go to http://isynctasks.appspot.com/ and login with your Google Account. You specific which list you want to share and who you want to share it with. Once that other person logs into the same web site, they will then see your tasks. Essentially it is reading your task list and creating one for them. It then keeps them up-to-date. Nice!