It now looks like OS 2007 supports a feature called Single Click Install. If I am reading this right, it looks like you can create a file that when double clicked, adds a repository to application manager, to make it easy to install applications from the repository without having to type out the repo's info on the on screen keyboard. This should make installing applications much easier, and provides an easier way to backup and restore your repository list (without messing with the sources.list file directly).

Good one Nokia!

Details available here:

http://maemo.org//platform/docs/howt...-Click-Install