I'm flying on an RT ticket originating in Asia, and I just came across this page:
http://www.skyteam.com/about/products/america.html

that is essentially a pass where you pay for flights by the leg. Does anyone know how I can pull this up on expertflyer? I'm trying to figure out what the maximum "stay" of 60 days means; is that the time between the first and last flight? or is that the maximum stay within each city?

You're eligible per T&Cs, due to residence outside of North America:

General Terms and Conditions of Sale (extract)
The SkyTeam America Pass is only valid for sale when purchased in conjunction with a transatlantic, transpacific or intercontinental flight on any of the 9 SkyTeam Member airlines and the two Associates or with a SkyTeam Round the World Pass. The SkyTeam America Pass can be sold in conjunction with SkyTeam Frequent Flyer award tickets (but not with other non-revenue tickets). Travel must originate and terminate in a country other than the 50 United States, District of Columbia, Canada, Mexico, Puerto Rico, Virgin Islands or the Caribbean.

Eligibility
Fares governed by this rule apply to residents or active duty U.S. military personnel/U.S. Department of Defense personnel and their eligible dependents stationed in a country/commonwealth/territory other than the 50 United States, District of Columbia, Canada, Mexico, Puerto Rico, Virgin Islands or the Caribbean. Passengers must provide proof of eligibility at the time of ticketing.

As far as I know, it's 60 days from the date of the originating trans-atlantic/trans-pacific flight. So basically, all your travel has to fit within 60 days of going over.