This is something I have been doing commercially but generally under the radar for the last 3 years all the while trying to get Petzl to do it themselves. The new Nomic will offer a hammer as an option.
I'll also be making this hammer as a retro fit for all the newest tools and the new picks this coming winter. But no reason to sell your old Nomic. Most of the newest features can be upgraded into your current Nomic including the better umbilical attachment point and hammer.
First experience with the new lower grip pommel is it will also retro fit with a little effort.
This hammer is lighter and better balanced than Petzl's new hammer for the Nomic. I cut new factory picks to fit my hammer. Spare picks for these hammers can also be easily made from the older style (pre winter of '10/'11) Quark picks and a few minutes on a grinder. Nomic pick weights are 62grams. The CT hammer is 34grams. The PetzlNomic hammer is 65g.