This is an experimental release of Seamonkey 2.28. Optimized for first generation Intel Core2Duo CPU, should run on late P4's and up and late AMD K7's or K8's and up. Best performance from later Intels and probably better performance on later AMD chips compared to the default i686 build. If it dies on launch with a sigill, your processor is too old.
This build also uses the new fontconfig, currently in the RPM experimental repository and will need installing for this build to work.
See README.OS2 for other requirements etc, they're the same as all the other releases based on Gecko 31ESR
Dave