The Fire Maple (called hornet or wasp-depending on who translated it when boxing in China) FMS 300T is the lightest canister stove on the market at 45g.
Arguments could be made for better, more efficient, etc. But as far as weight- this is it.
FWIW- this stove remains my favorite overall-the TI version has a different burner head. My personal stove is nearly 12 years old, no issues, ever.
http://www.amazon.com/Snow-Peak-Giga.../dp/B001SMOWHQ
The olicamp Ion is the same stove, or as Roger Caffin more accurately puts it-
"Of course not! The Olicamp ones are BLUE! That obviously makes them ever so much better... :-) Cheers"
I own one, it is an excellent stove. Assuming you are carrying an ignition source anyway and depending on how you do your math, you could count your mini-bic (13g) as part of the weight.
As WOO obtusely shared, it is now easy to get in the US-
http://www.amazon.com/Camping-Backpa...VM23209B2Q5Y1F
A beer can pot is still the lightest, and technically commercially available. But if you're not much for having to baby your pot and/or occasionally might want to cook on an open fire.
The Toak's pot is quite light, 3oz. including the lid. I am not 100% positive it is the absolute market available lightest pot, but it is very close.
I also own it, happy with it, the stuff sack included is nice and the pot stows a small (100g) canister, the stove, a mini-bic, and a lightload towel with no issues.
http://www.amazon.com/TOAKS-Titanium.../dp/B00CYA26BU
At about $60 for the pair, including shipping. It is hard to argue with this setup.
Compared to a Jetboil, I feel this is a better starting rig- you can use any pot should your needs or trip type change. If your fuel curiosity leads you elsewhere, the pot can be used with any alchy, esbit, or wood fire.
All the Toaks brand stuff is nice, much cheaper than comparable TI (walls are thinner- non-issue with basic boil cooking), and doesn't (yet) run into the availability issues common with Evernew.
As a cheaper, non-TI alternative at 3oz (no lid) this is a popular alternative putting you all in (stove and pot) for under $50.
http://www.amazon.com/Olicamp-Anodiz...ds=olicamp+ion