I too am toying with the idea of doing a OneWorld RTW in J sometime in the middle of next year. Here's the itinerary as it stands in my head right now.

ICN-xHKG-JFK-ORD-PDX-DFW-YVR-LHR-DXB-LHR-HEL-LHR-BOM-SYD-PER-xHKG-ICN

Mileage Monkey verifes this as a valid itin provided the 2nd intercontinental entry in Asia is under 24 hours. I did have a few hops around Asia in mind. Can anyone clarify if, e.g. ICN-xHKG-JFK is classed as 2 segments, with ICN-HKG counting as 1 of 4 asian segments?

The only cities where I won't be in transit (i.e staying more than 23:59 are NYC, ORD, PDX and BOM.

Also, is the maximum number of segments still 16 or has it been upped to 20? I remember reading so somewhere but can't recall what the exact discussion was!

Cheers