I'll start off and then I'll let my expert to speak to this.
The two examples you gave are applications of open data. They are applications or end uses of it. You're seeing a tool that's using open data that someone has acquired when you use your GPS system, for example. The data there are data that an end user puts together to provide value, and you can navigate in your car with it.
That's the distinction. Open data is raw data. It's readable, but it's not something you can pull up on your BlackBerry or your cellphone. It's something you're going to have to download, and companies have used that to make end use applications for your iPhone or BlackBerry.