provide libplayback-1-0, and osso-esd as well (osso-esd can prolly just be a empty package).
If we were to start making the chroot part of Deblet a little more integrated, building a local repository is part of install, and there would be possibily to add packages easily through Synaptic etc. And a menu item saying "Upgrade Deblet packages" which rebuilds the local repository and allows people to get new Deblet changes in from SVN. That'd be the easy solution, really. :P