Envoy: Elegantly greet visitors to your office
signwithenvoy.com
signwithenvoy.com
Technology can be super useful (obviously), but this is just total overkill.
Done poorly - Google - Typing on a screen to get your badge is always a slow, painful process. Trying to have an event with several people who all have to sign in demonstrates how much of a painful bottleneck this can be.
Done well - Hacker Dojo - Multiple kiosks with real keyboards. You can sign in and (at some events) get a badge super quickly.
The code for the hacker dojo kiosks is open source and available here (https://github.com/hackerdojo) along with a bunch of other useful tools.
We're working on a new de-duping system. The current dupe detector is deliberately left porous so that reposts of good stories that didn't get attention won't be killed as dupes.