I assume OP is looking for an existing product, not one that might ship when the moons of Jupiter align.
In all seriousness though, I've been waiting for my Lockitron for almost a year now, and others have been waiting for much longer. At this point, there's no way I can recommend Lockitron to anybody as anything more than a cool concept.
They sent me an email telling me my unit "shipped" last July and would arrive July 14-20th. 3 months later it still wasn't here so I sent an email, and the response was basically, "Uh... we expected to ship it to you at that time, but really we have no idea when we can actually ship it."
1 year after preorder they had to process the amazon payments preorders or amazon would void them. So here I am almost 2 years since I preordered a product that I've paid for, and they can't even give me an expected ship date.
Of course they continue to send marketing emails/self congratulatory accomplishments about software updates and hardware fixes for a product that doesn't exist.
But have never been upfront about that fact that it would likely take them 3 years to enter the market. Most of their email blasts are about them being right around the corner
Seriously? I expected the same thing I expect with most Kickstarter/similar projects (and those make you pay up front): there will be delays, there will be periods where you're more in the dark than you'd like to be, and it's gonna be a while before you have a product in your hands.
In all seriousness though, I've been waiting for my Lockitron for almost a year now, and others have been waiting for much longer. At this point, there's no way I can recommend Lockitron to anybody as anything more than a cool concept.