I totally like cool products like the one on display here. But i'm so tired of those preordering-sites.. really, i want to order your stuff. now. Tell me when it's finished, put the site online. If you really need an indication whether someone likes/needs it, perform market research without irritating potential customers. And if you need additional funding to make your vision happen, sites like kickstarter offer a clean and generally well understood way of making that happen.
No, I'm not going to preorder a product now that ships sometime in 2015. Not even for a 50% discount.