Musique
Minitunes - a Qt music player created by the Minitube developer -, has been renamed to "Musique". Besides the new name, there's also a new version that comes with bug fixes as well as a Windows version, making Musique fully cross-platform.
Musique can be downloaded via http://flavio.tordini.org/musique. If you use Ubuntu, you can install it from the main WebUpd8 PPA (available for Lucid, Maverick, Natty and Oneiric, but please note that I've only tested it on Oneiric):
sudo add-apt-repository ppa:nilarimogard/webupd8
sudo apt-get update
sudo apt-get install musique
GNOME Shell Mediaplayer extension
GNOME Shell Mediaplayer extension has been updated recently to use the GNOME Shell volume icon instead of placing a new icon on the top GNOME Shell panel. Other changes: Pithos support and a bug that was causing GNOME Shell to crash has been fixed.
Install it in Ubuntu using the commands below:
sudo add-apt-repository ppa:webupd8team/gnome3
sudo apt-get update
sudo apt-get install gnome-shell-extensions-mediaplayer
If you're not using Ubuntu, get GNOME Shell Mediaplayer via GitHub.
Once installed, restart GNOME Shell (press ALT + F2 and enter "r" or log out and log back in), then use GNOME Tweak Tool to activate it.