Did you consider using different name? it looks like whole lot of other software now depends on it and even simple update of psx emulator or even apt-get update with extras-devel enabled (i guess we all have xserver-xorg-core package) will install this one... if extra functions are needed only for meego and the package itself is in Maemo core, it could always be called e.g. libaux-power (busybox-power, kernel-power, etc. ) and have "provides" and "replaces" flags set in debian config file. Feel free to correct me if I'm wrong, but pushing to extras-devel package with exact same name as a package in other repo is plain wrong

edit: i still have osso version installed, so can't help you with testing, if i update (in case it will get pushed with some other updates), i will let you know here in this thread.