Last year I had to make a table of how the various screen resolutions map to their cryptic acronyms, because I couldn’t find a nice consolidated list.
I just stumbled upon this sweet graphic at wikipedia which does a good job of showing them all. The red line represents 4:3 formats, and the purple line is for 16:9 (widescreen) formats.
For reference, QVGA is what your iPod can display, XGA is probably what your computer is running, WUXGA is what my computers run, and WQXGA sounds like heaven. Well, maybe unreadably-tiny hell if your screen is 15″, but heaven if it’s 30″ Apple Cinema Display.