ApacheTop was written because there are no other realtime tools (that I could find) to display what your Apache server is doing in a concise helpful display. It's approaching some form of stability now, and should be quite useful. Some of the best stuff is still planned, such as filtering the display to only show what you're interested in, and then pull up more detailed statistics on just that.
Ebuild already exists in portage. Didn't have a sparc keyword so I've tested it and marked it ~sparc.