Currently, Peoplesoft are stopping support of B7333 in Febuary 2005.
This does not mean that they will suddenly stop taking your calls, nor does it mean you can stop paying maintenance (unless you really want to !)
What this means is that ESU's will no longer be developed to fix issues in B7333.
This is in line with their policy of supporting current + 2 prior versions when 8.10 is released (ie, 8.10, 8.9, ERP8.0 or B7334). I would guess that ERP 8.0 support will be dropped at some point after 8.11 is announced/released.
If you're happily stable with Xe, then you'll be glad to know theres nothing you really need to do - except maybe reduce your maintenance level to, say, Bronze or Silver.
However, in reality, the number of support calls ending with "its fixed in version xxxx" will likely increase, usually frustrating most customers !
There are still customers live on prior versions of OneWorld - I know of customers on B7332, B7331, B732x and even B7312 !