What does Command+Q do? I assume it is a Mac thing - I guess it quits something?

LimeWire is a cross platform application so doesn't include things specific to one operating system. But there are a sufficient number of ways of quitting LimeWire - so why do you need Command+Q?

There *is* an "About" Menu item and is *does* have the current version number. Look under the Help menu (at the bottom).

Mark