FreeBSD selfhosting on UltraSPARC T1
The third operating system is available for the T1: FreeBSD is selfhosting now. It´s stable enough to run through a make buildworld. It´s facinating how fast the ports are done to this architecture.
I think that the delopers see the T1 as an very attracting target. And additionally the ports are done against sun4v, not against the T1. sun4v was developed to build an abstraction between processor hardware and operating system, so the work on kernel ports should be done for the foreseeable future.