Today the Linux Foundation announced the first beta release of the LSB 4.0 Sample Implementation. This is a very exciting release, in the past the SI has always been based on linux from scratch, for 4.0 the SI is now built using the rPath tools for 7 arches!
The LF folks have done a great job, I really love seeing our tools used to build for some many architectures: x86, x86_64, ppc32, ppc64, s390, s390x, IA64.