Smartphones to Replace Keychains?

We posted an earlier article about how phones are looking to replace cash and plastic and become your wallet on top of already being your communication device and entertainment source. Now it seems they may very well take over the role of keyring too.

Lockitron, a US based company, has a DIY system that connects your doorlocks to a your phone via your router. You can lock and unlock a deadbolt using your smartphone. What's more you can grant access to other smartphones via an SMS for once off uses, say for dinner guests, or for a limited window period, if you have a contractor visiting.

Even better are reports on Springwise that they're working on an NFC based system, so you'd just swipe your phone across your door to enter. Very Star Trek. This is especially good news for people who constantly lose their hotel key cards or get sick of having to traipse down to reception to get them re-coded.

If you could have this system in your car, house and office you would be able to eliminate having to carry keys at all.