OK, thanks to Google I now know what "Kickstarter" and "Pozible" are. Intetresting concept. On Pozible one guy seems to have >$19k for sticking RGB LEDs into a hoola hoop! How many of these projects actually come to fruition in the end? Some seeem pretty ambitious, some completely stupid. Cast your net wide enough and it seems you can sell almost anything.
Err, you haven't been following Kickstarter then! (there is another recent thread on it).
Every kid in his garage is getting 6 or 7 digits for any idea they throw out there. 5 digits is practically guaranteed on Kickstarter for any flashing led board.
How about $313K for a micro on a board?http://www.kickstarter.com/projects/digistump/digispark-the-tiny-arduino-enabled-usb-dev-board
An example of a simple bare board that met it's very modest funding target:http://www.kickstarter.com/projects/671510748/superlf398-low-parts-count-sample-and-hold?ref=card
Pozzible is much less simply because it does not have the market presence and hype of Kickstarter.
How many actually deliver? Well, almost all of them are later than promised because so many underestimate how much time/effort it takes to manufacture stuff. And some completely fall through and deliver nothing after a year or two.
There is so much failure that Kickstarter have recently changed the rules to try and stop "pie-in-the-sky" ideas getting listed.
But if you need money up front, and effectively get "pre-sales", it's well worth considering.