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This is a wikithread, meaning the next comment below will routinely be updated with relevant info related to the title topic. All helpful comments and updates posted in this thread will also be added.
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All Wikithreads can easily be found by searching for #WT in the search box.

Ventu: testing various tolerances of the arm to create a tight seal. (11/02 blog post)
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Unhampered: awaiting a new prototype (with revised design) from factory (6/29 blog post)
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Boil Buoy: in engineering, with focus on electronics, mechanism, and safety issues (6/29 blog post)
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Kosuku: getting tooled (6/29 blog post). We still don't have an exact date, but we're expecting Kosoku in time for the holiday season. I'll post more updates when I have them. (Nov GS Post)
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Mocubo: in Tooling/Prototype/Materials/Quoting (11/15 thread). Three drawers moved to the front; strainer removed.
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Steeper Keeper: just entered production (11/11 blog post)
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Stake: prototyped, with ETA early next year (ideator report).
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Mercado: just entered production (12/5; blog post)
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Totem: just entered production (11/29; blog post)
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Ember: It is currently in the prototyping stage, which means the engineering is solid & they are basically inspecting prototypes from the factory & making the necessary adjustments. They are being made at the same plant that manufactures Pivot Power--which is good news to me, because I really like the quality of the Pivot Power. Once they have approved a prototype from the manufacturer, they will need to perform electrical testing/inspections. It takes roughly a month between each prototype that is reviewed (12/7: ideator report, this thread).
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Also in production:
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Flair
HydraDuo
Ripple
Bloom
Ledge
Cush
Sliders
Ember
Iron Station
Pen Zen
Brim
Porter
Mirage
Scribe
Nautilus
Sling Back
Stash Can
Go Caddy
Splash Stacks
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Feel free to request specific updates for certain products (in production, not design) below, and the Inventions Ambassadors will work to find us the latest update.

HydraDuo isn't on the list ;)

GripGrater is now shipping!!!

Stake is almost there, saw the prototype and it looks great! Should be ready by early next year...

Thanks, all. I made all three edits :)

It's HydraDuo ;-)

Matt is getting as sloppy as QS. He's defected to the dark side! :P

Oops...sorry guys. I was typing too literally. Yes, sloppy and rushed. I need to practice what I preach and slow down :)

Thanks for these updates Matt

Also, Lift is in production? It doesn't have the "We're Making this" on it.

@Tyrel: you are welcome. Trying to figure out how to make myself useful :)
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@Cody: another nice catch! Not sure how it got there. It has been removed.

Mercado is in Production!

Congrats! Just saw that, and also saw that one coming :)

what is the status of Ripple? and maybe Flair too. thanks.