unanswered questions:

1. restricted domestic upgradeable upgrade fares? (dl unsULT fare policy)
2. base or non-base mile earned on "other" airlines? (dl/ua "alliance" - ua miles not added to dl base miles)
3. policy for access to "other" airline clubs? (dl/ua "alliance" - must be traveling on ua to get into Red Carpet room with Crown Room card)
3. segment vs actual miles to achieve elite status? (nw only miles, dl/co segments or miles)
4. "round up" to 500 miles per flight? (done on dl/nw - not on co)
5. pecking order on "other" airline for upgrades? with two, primary is first, "other" is second. with three, which of the two "others" gets the first shot at the upgrade in a given category?
5. miles needed for platinum? dl = 100K nw/co = 75K
6. free access to lounge at platinum/ - dl yes, nw/co no.

probably more - just a few questions circulating the office this morning among different ff's