Unfortuanately, it appears to be happening everywhere....experienced it for a bit myself and just gave up and logged for the night:

US - South Carolina
Windows XP, home built system running Intel C2D E8400 CPU with 4GB G-Skill DDR2-1100Mhz RAM and an ATI HD4850 512MB PCI-E Video Card, 1TB Hitachi 1TB 7200 RPM HD with 32MB cache
Time Warner Cable/Road Runner 8MB/360Kb connection--RTT to Tokyo avarages about < 225ms in testing, typical transfer speeds run 4Mb/280Kb with file transfers to various JP based sites.

About Midnight EST, started getting sporadic R0, but were brief and it was recovering. Eventually it got to where it was happening roughly every 30 seconds. About 12:30 AM, I had a long R0 and the indicators went to red briefly before I recovered connection. I was in Abyssea - Altepa on Carbuncle, trying to get to Conflux 7 to port to conflux 1 and leave. When connection recovered, I had 5 tigers and the Notorius Monster on me. I died and homepointed, and was immediately getting R0 in Port Jueno. Took Abyssea Warp to Abyssea-Altepa Maw and while running to Bastok Mines, got another R0 moment, and again while running to mog house. While in mog house (Bastok Mines) and getting gil from Delivery Box (AH items sold) I again R0'ed for a long time and indicators again went red. Connection recovered and I logged out.

Laptops are browsing normally everywhere I went, except for these forums. I've had to reload several times because pages stalled on load. Users on various forums are reporting problems across multiple servers and multiple zones. Many got full disconnect from timeout and have not been able to log back into game. Some have also reported problems getting playonline.com to load as well.