There are tons of controllers for iTunes out there, some are useless, some are great, but illis brings a new aspect to the market. Style.
illis also supports Growl notification. This means that if iTunes track changes, illis will notify you via Growl. But don't worry, you can turn Growl notification off.
And if you have guests over, you can now hide your computer from they're wondering eyes by using the fullscreen "Curtain" feature.