Excellent Kickstarter page, great video, good setup of tiers and clear text. The imagery is clean and high quality too.
...so that's the praise out of the way (It's useful but not constructive!). What stood out for me on the video was putting my laptop on a board using the UX4. Crowdfunding backers are going to be computer literate and have the funds to back you, so I think focusing more on the aspects of "using with new tech" would help you.
The UX4 could be used for lots of ideas, I thought of DIY Amateurs (People who need a rest to plaster, paste wallpaper or to hold paint), artists who want an easel, How about shelving? Can it be mounted on a wall? The reason I thought of shelving was when you're speaking on the videos, there's many shelves behind you.
I think the tiers pricing and bulk options are great. The colour option at the end of the video was a *wow* selling point too.
Finally, the big one - other than the people who've featured you, who else have you contacted? What pitches are you using? How come you don't have a Twitter account (best for instant messaging).
If you'd like to talk further, feel free to drop me an email or PM on the board
There's lots of ideas