A few recently launched todo listing, brainstorming, goal setting apps:

Wallnote [wallnote.com]
I love this one. Lets you manage notes and to-do’s and comes in cute pink and blue.

I like this one as well. Lets you collect and organise your ideas in categories and pages.

Joe’s Goals
lets you set goals (daily or weekly; positive or negative) and track your progress.

more to-do items, has many features if you need a higher degree of granularity.