For example, since I work in gmail a lot, it’s convenient having google tasks available right there. I also have a bookmarklet on my browser toolbar that open up a slick view of my google tasks. Check it out. https://mail.google.com/tasks/canvas
You can also use google tasks on your iGoogle homepage and on your mobile device by saving the bookmark to your home screen where it looks and feels like a native iPhone app…well, almost anyway. I keep hoping Google will break down and release a true app for google tasks but they refuse to do so.
In steps in GeeTasks! I love this new app for google tasks which is not from Google. They have a free lite version and a pro edition. I really like this app because it makes using google tasks actually fun! Here’s a screencast that shows what it can do.