Apple is offering a new iMac Software Update to its customers, through the Software Update utility in Mac OS X, or alternately via the Apple website. The v1.1 file is aimed at "20-inch and 24-inch iMac models with 2.0, 2.4, or 2.8GHz processors" -- the new aluminum iMacs -- but is only described as providing "important bug fixes." The file is 5.1
