A future topic in the making for sure

Last night we had a kickoff discussion night for Chad's new campaign that he is co-DM'ing with his friend Ian.

I'm onboard with a Dragonborn Fighter/Rogue, but I'm highly curious how their two-handed DM screen wield is going to go.  I'm sure we'll podcast about it after a few months of successful or crashed-and-burnt campaigning goes, but needless to say, its fascinating and worth talking about.

Has anyone else tried a two-DM campaign?  Would be interested to hear some lessons learned.