Ioncube seem to bind their software to hardware and network interfaces. If you have a valid license and you are going to upgrade your hardware or OS there is a safe way to retain the license.
Clementine-Player is Amarok 1.4 Qt4 clone for Fedora 12
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Found at http://code.google.com/p/clementine-player/
ffmpeg with aac support in Fedora 12
I have found a pretty helpful article for ffmpeg recompile: http://fozzolog.fozzilinymoo.org/tech/2009/11/recompiling-ffmpeg-for-fedora-12-to-add-faac-support.html . However, it looks like the instructions were incomplete.
Huawei E1550 Install
Please refer to http://wiki.lynxworks.eu/misc/e1550#fedora. Install usb_modeswitch: sudo yum -y install usb_modeswitch