Independent transatlantic operator Hibernia Atlantic (news) took a detour out of its home turf today and into the Pacific. They have added Tokyo to their Global Financial Network. The GFN has been steadily adding new nodes to their offering as the low latency craze has spread beyond the routes that spawned it some three years ago. In this case, the latency on the Chicago-Tokyo route will be 127.5ms round trip delay.
Of course, Hibernia Atlantic didn't go and build a transpacific cable, they are obviously leasing wavelengths. My guess would be that they're leasing them from NTT, which claims the shortest transpacific link to Japan right now on its PC-1 cable. Hibernia Atlantic said that Hong Kong and Singapore will be available soon as well, and they appear to be working on links to Sydney and probably Sao Paolo to round out the set according to their network map.