I just weighed everything and it is 4.65oz. The pot is an Evernew ECA266 which is 2.6oz. It has become quite hard to find since the Tsunami (as with all Evernew pots).
The Caldera Cone and stove came from Anti Gravity Gear, but I think you can now buy direct from Trail Designs. I don't use the fuel bottle that came with the stove, for shorter trips, I use a clear travel bottle (for shampoo???) I bought at Target and it happens to nest perfectly with a measuring cup I have. For week long trips I use a 6oz mini water bottle.
I can boil 12oz of water with 15mL of fuel, which is about half an ounce I think, even in cold (and by cold, I mean down to ~15*F, not Arctic conditions). It is faster than most people think it is and on many trips it is as fast as most peoples canister stoves. It probably isn't as fast as canister stoves in the garage, but the least little bit of wind kills their performance.
IMO – Jetboils really only make sense on long trips without resupply or for large groups. They really are efficient stoves, they are just not real light for what they do so you need to boil a lot of water on a trip to make the weight worth it. That isn't saying that there is anything wrong with carrying one, I hike with a few people that really like them.
There are two problems with the Caldera Cones however that you should know about.
First is they are bulky and somewhat hard to transport. The "Caddy" that comes with the stove is heavier than the stove itself and I have never used it on a trip myself. I either roll it with my sleeping pad (CC Foam) or I use my pot to protect the bottom half, and a cut off Gatoraide bottle (that doubles as a measuring cup) to protect the top half (it weighs 0.8oz).
This can be solved with some pots (wider pots like the 900mL Evernews) with the Sidewinder. The sidewidner rolls up and fits inside the pot, which eliminates the issue of protecting the cone.
Second is for the most part they can only be used with one pot as they are sized for the pot. If you use multiple pots (say a small mug for solo trips and a larger pot for group trips, you would need two cones.