Critical article, but missed one of my staple pieces of kit:
Primus makes a French Press insert which fits several of their current generation of 1 liter LiTech Al kettles.
I use it quite successfully with their previous generation 1 liter pot, too. I know, a bit heavier than ultralighter's would consider with their Ti kettles, but the Primus anodized Al seems bullet proof. I've had 2 for *years*, and plan on passing them down to my grandchildren (but not soon!).
Also, one further important use for high quality coffee beans on the trail -- barter! After fully supplying the adult crew with morning Java for the whole of my son's 2 week Philmont trek, I had enough Peet's left our last night at one of the high base camps to trade the staff for 2 dozen doughnuts. Boy was I popular, both with our kids & adults, and the high base camp staff!