Is there any way to remove/hide the "installed app" icons from the status bar without uninstalling the app? If I download and like an app, and want to keep it, do those icons always occupy space on the left side of the status bar? I get one of these icons for each app installed.
I think some are just being confused by the GPS Sat Icon (dish with green waves, that I guess kind of looks like it could be an ear with waves coming out of it) and the Location Services Icon (Target Icon) is all. Location Services is allowing programs access to where you are (through Network Triangulation, as well as probably through GPS if its on). The GPS Sat Icon won't even show up unless your phone is actively seeking/syncing with GPS satellites, so even if you turn on GPS, that icon may not show up unless you or something on your device does something which requests your location, via the GPS radio.
JrD's point also brings up a question: I read the FAQ over at Mobile Defense (creators of the same named app, which allows tracking of your phone via GMaps) that even if you leave the GPS feature on, there should be no impact to battery, unless the phone is using its GPS radio (which is shown by the GPS antenna icon).