SpeedCrunch has no menu icon. Here's a patch to the current CVS to generate the icons and to package them. Feel free to do what you want with the changelog entry, I just added it out of habit. I also changed a reference to %{buildroot} to $RPM_BUILD_ROOT for consistancy, as required by the guidelines.
Created attachment 151917 [details] Patch to enable the menu icon
Ha, that's the kind of bug report I like - a fully patch included :) Thanks for that, the new build is on its way.
Don't forget to include icon scriptlets: http://fedoraproject.org/wiki/Packaging/ScriptletSnippets#head-7103f6c38d1b5735e8477bdd569ad73ea2c49bda