This works for creative writing projects, too. Heck, I've even seen my 11th-graders do it before writing a long essay. The folks at Inspiration have sold an adult version of this software for years. This is the kids' version, aimed at grades K-3. The tools have been greatly simplified and a speech component has been added, making it easier for struggling readers or nonreaders to join the party.
Kids face a simple menu when they log on.
Teachers who master the software can easily add their own activities. The child can use the word processing tools to put his main idea on the page. I would imagine that this would be a far more effective teaching tool if used with the whole classroom or small groups. It is of course highly visual and much more efficient than a teacher scribbling stuff on the board as fast as kids can shout out ideas. You will of course have to create rules about who gets to choose which graphic to go with which idea and also set time limits, because we know those little ones can sure take up a lot of time making decisions.