For those of you who remain unaware- as was I until recently- the Perfect Stove System is a reality! Rand and the other wizards at the TD skunkworks are now marketing titanium versions of the UL Compact. It is listed on the website as the Caldera ULD Tri-Ti and they will even add one of those Inferno inserts Rand mentioned for higher wood burning efficiency if you like. About $120 for a complete kit including firepan and Infero, though you can forgo either of those to just get the cone, stove, and accessories for $70. Needless to say, mine is on order...
Seriously, though, I'm discovering that my (new) MLD 850mL pot is about the perfect size- enough to boil water for a meal and still have enough left over for a decent cuppa, all in one go. Or, alternatively, it can cook two meals for a pair of hikers. With the UL Compact being stored inside the pot one avoids the occasional frustrations of trying to pack the full-sized (but more efficient) Caldera Cone, and the multi-fuel option is a winner. Alcohol, Esbit, or wood for under three ounces. What more can you want from a stove? (Not to mention that alcohol stoves are simply more FUN to fiddle with and more esthetically pleasing than those soul-less pressurized gas stoves.)
So, IMHO the 850mL ULC Tri-Ti with inferno just may be the Perfect Stove System (PSS).
I retain my 1.3L Evernew Tri-Ti for group outings.