PPC emulator to run MacOSX 10.5 Is there any PPC emulator (for either Intel Macs or any Linux) which can run MacOSX 10.5 PPC?

My current research only points me to PearPC and the latest post/release was from 2011. On the homepage, they say that they have support for MacOSX 10.3 with some caveats. Also, it doesn't seem to emulate a soundcard which is relevant for me. Some totally outdated forum posts are asking about MacOSX 10.5 but without any real answers, e.g. here or here.
To do a 100% accurate test your best bet would be to get an actual PowerPC Mac. Alternatively, you can install 10.6 (Server) in a Virtual Machine, which can test PPC Applications through Rosetta.