There's been a series of threads over at Cosmic Log, the latest of which can be seen at:
http://cosmiclog.msnbc.msn.com/archive/2006/11/27/15908.aspx#comments

Arguments offered by the linguist Senta Tr?mel-Pl?tz and the physicist Allen Esterson on the subject of the contributions of Einstein's first wife to his scientific output during their marriage.

From my reading I am of the opinion that Einstein's first wife should have been co-awarded the Nobel and the glory.

Whether she had the brilliance to conceive of the concepts? Can't say.