mobileGlu is a new service aiming to provide a mobile hub for existing open API's, like those provided by del.icio.us and Flickr.
Registration is free, and all you need to do is add your subscribed feed content and download a tiny Java-based app to your cell phone.
As a next step the developers are planning to add posting capabilities to the client which would be great.
You can find out more about mobileGlu on the
developer's blog.