Hi. When XMPlay is minimized to the tray and you play/pause, restart or change track from the right-click menu, you can open the info window with F1-F5 (with XMPlay still being minimized)! So, if XMPlay was minimized from the mini mode, you can have the extended playilst open always-on-top with no main window visible! Now, that's interesting. (Unfortunately visualtisations and pattern display don't work.)
Maybe it's worth to add an option to the right-click menu to have the info window opened without this... cheat mode?