Can't see anything about the rules, but the fares ex-Asia (excl Japan & Indonesia) are going up on 1 July for various OW fares. As notified by CX in HK:
Code:
oneWorld Circle Pacific and Circle Asia and South West Pacific Fare Revise
Please be advised that fare levels of oneworld Circle Pacific Explorer Fare
and oneworld Circle Asia and SWP Explorer Fare will be revised effect
01 July 2008.
1. Fare increase Ex Asia (except Japan/Indonesia)
2. Introduce Circle Pacific fare ex Cambodia/Vietnam
Circle Asia & SWP Fare OW Circle Pacific
Country Fare Basis Revised Fare Fare Basis Revised Fare
Hong Kong AAS17 58940 ACIR29SA 72030
(HKD) AAS13 51040 ACIR26 67600
7.78676 ACIR22 55410
DAS17 41380 DCIR29SA 50440
DAS13 35750 DCIR26 47340
DCIR22 38810
LAS17 21640 LCIR29SA 28870
LAS13 18970 LCIR26 27090
LCIR22 22200
Thank you for your attention.
There are also increases of 10+% on ex-LHR economy fares (and 5% on F), and on various other routes (e.g. ex-Thailand up 10% in F&J, 7% in Y) on the same date.