title: iPhone: There is no SDK with the name or path 'iphoneos3.0'
body: <p>A friend of mine just had to reinstall his OS (after power went down while updating) and when he installed Xcode he got this error.  In the drop down that usually has device/simulator etc, it said 'missing'.  I also noticed he had no developer folder on his machine as well. Anyone know why this might be?</p>