I don't think there is much to debate. Both CPU is capable of going to 1200 and more. The capped is made via a firmware settings, so anyone who is running a rooted ROM can make the changes to 1200.

Some said Sammy drop it to 1008 was due to the overheating issues in the original S2 but I suspect it was more of Sammy not producing the chip as many as it wanted and maybe its replacing the Exynox with 2GHz for S3 next year. Usually commercial takes precedence over technical release.