The .SX registry has announced a rollout schedule for the .SX domain:
a) Grandfather Phase for existing domain holders
Ends July 31st, 2012.
b) Sunrise Phase for trademark holders
Ends September 21st, 2012.
c) Landrush Phase
Starts October 22nd, ends November 11th, 2012.
d) General Availability Phase
Starts November 12th, 2012.
If you would like to register or protect a domain name during the Sunrise phase, please contact us at email@example.com.