Hi all,
I have completed a working prototype of a Bitcoin enabled Wifi Hotspot running on a Raspberry Pi. I will upload a video in hopefully the next 5-7 days once I've made the web pages a little bit prettier.
Anyway, here's what it does :
1) creates an open SSID called "BitcoinWifi". Allows any connection to a bitcoin node on port 8333 (thus enabling easier wifi payments).
2) any webpage gets redirected to a payment page on which the user can pay an administrator - adjustable fee for access ( so far just 1hr or 24hr but these are just initial timeslots).
3) upon payment (there is a bitcoin formatted URI on the payment page above which should enable *most* bitcoin smartphone wallets to go directly to their payment mechanism), the redirect is disabled and full internet access is allowed. The wired subnet that the router is on is blocked *apart* from the actual "real" router for internet access (so users will not be able to access anything on your network).
4) after the time period, the restriction is automatically started again.
The device is zero config to get running. Just plug into a 5v usb micro and ethernet into your router. To extract the bitcoins, you'll need to login as an administrator (password will be included in the package), and just go to an admin page and put in an address to which the bitcoin balance will be forwarded.
I am going to be marketing it shortly (as mentioned, just need to tidy up the webpages as they look awful - I'm a developer first and foremost!).
I will be selling the device as a Rasp Pi + WiFi USB + SD Card for probably about 1 btc to start with (which is pretty much the sum of the parts) once I have a demo online (I am tempted to put up a pre-order page but I know how much you all love those - "shipping in two weeks" (tm) promises). However, I am collecting names, contact details of interested parties now.
Feel free to get in touch with me via this post or PM and we can exchange email addresses.