Samyang Russia published the price of the 24mm 1:3.5 ED AS UMC tilt-shift lens on their website: 34,090 rubles (around $1,100). For reference: the PC-E Nikkor 24mm f/3.5D ED costs $1,999, the Canon TS-E 24mm f/3.5L II sells for $1,949. The Samyang T-S 24mm f/3.5 lens is expected to be released in March, 2013.
Update: the lens is listed for €699.90 in Slovenia.
Screenshot from samyang.ru: