being discussed in both UA and CO forums:

United:
http://www.flyertalk.com/forum/unite...er-thread.html

Continental:
http://www.flyertalk.com/forum/conti......-miles.html
http://www.flyertalk.com/forum/conti...w-program.html

The general thinking in the UA forum appears to be that MP will survive; redeemable miles will just combine; elite structure will follow UA, with CO Silver = UA 2P, Gold = 1P, and Plat = 1K; following integration year, Plats will need 100k EQM to requal for 1K (ie, 75k tier goes away); nobody knows about lifetime miles, which are calced differently (CO = EQMs, UA = butt in seat).