I've been using a MiCasa Verde[1], alongside the compatible KwikSet Deadbolts[2], an android app called Automator to accomplish the same thing. It's actually a little pricier but you get:
a. Remote entry -- unlock your door from afar.
b. A nice home automation system (mine's expanded to control lights and thermostat now)
c. Keypad and key-entry as backups
I love it. Being able to remotely lock and unlock your doors is super handy, whether it be for guests, contractors or what not. But what's really handy? Never worrying about locking yourself out of your house again.
If I could just get rid of my car key, I'd be thrilled.
The integration with other things is a big deal fwiw. I'm currently playing with NFC and doing things like "when I tap my phone on my night stand, make sure all the doors are locked and turn off all the lights except for the bedroom"
We're headed towards the Internet of Things but right now they're all sort of talking with their own software. A house with the Nest thermometer and the Lockitron lock won't be able to execute on the scenario I described above -- and if you're a homeowner you may want to think more long term than investing in one-off solutions for every latest thing a chip goes in to.
Regarding your first point, the video for Lockitron mentioned that you'd be able to remotely open your door from anywhere.
I'm really excited about this -- I've always wanted to do this for my door, but as a renter I can't exactly just change the locks without my landlord being pretty disapproving.
a. Remote entry -- unlock your door from afar. b. A nice home automation system (mine's expanded to control lights and thermostat now) c. Keypad and key-entry as backups
I love it. Being able to remotely lock and unlock your doors is super handy, whether it be for guests, contractors or what not. But what's really handy? Never worrying about locking yourself out of your house again.
If I could just get rid of my car key, I'd be thrilled.
[1]http://micasaverde.com/ [2]http://amzn.to/QGn2Im