Sounds like they have hardware experience
Especially in the time frame cited; I've worked in both fields and unless they have experienced full-time engineers and developers working on this right now there's no way they're making the deadline. The "we have a prototype" is at best a vague indicator of progress. Do they have a board designed? Has it been fabricated? Do they even have android running on the hardware they plan on using?
If not, are they using off-the-shelf boards? I can't find any Tegra 2 OTS boards available remotely within the price point they list, much less Tegra 3.
And the "some of them would get fired if we tell you who they are" is more disconcerting than assuring. If they do have people with engineering/manufacturing/software development expertise these people do not believe in this project enough to leave their day job. That should speak for itself.
EDIT: for example, see http://trimslice.com/web/order-direct. Their Tegra 2 board with more modest hardware specifications is only available at more than twice the price point touted for Ouya. Note that this doesn't even include the cost of the custom bundled controller, which is itself a substantial hardware undertaking.
The console industry is littered with spectacular failures of this type, and I'm before I believe this one is worth investing actual money in I'm going to need more than Yves Behar, Julie Uhrman who's "been in the game industry for years" (exclusively on the software side), and several mysterious people who refuse to even be named.