<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by ermdjdsj:
.......Will this take care of the reassignment of miles, so that they'll now go to my United account, or do I need to do more to get them to no longer post to Delta Skymiles?</font>
Assuming you did the registration online, therby deleting your Amex card from the Skymiles Idine first, before you could even register for any other Idine account, you are good to go. You cannot register the card to more than one Idine account at the same time.