Would my project be useful to you?

At the moment I’m working very hard on a new project (trying to get a website online as we speak).

The idea is basically that it allows you to quickly create a personal website with all the data you already have out there. For example, it can automatically display the last pictures you uploaded to Flickr, what you voted for on Digg, your latest tweets on Twitter, your latest blog posts or even the latest questions on Fluther.

Now I know I’d like such software, but I’m wondering if there’s a target audience for it apart from myself. Do you think there is demand for this?* Does it perhaps already exist?

* I hope I’ve phrased this well, this question was flagged as self-promotional but I purposely did not link to or name the project so I hope you don’t interpret it as self-promotional. It wasn’t intended that way.