FON sends you a WRT54GL running a modified version of OpenWRT. It uses a simple script to hit up a heartbeat url to let FON know you're using the router. You can easily install your own firmware such as a unmodified OpenWRT or DD-WRT and run a cron job to hit up the heartbeat page. $5 linux router becomes yours to use as you see fit;)
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Check out Harvest Moon.
FON sends you a WRT54GL running a modified version of OpenWRT. It uses a simple script to hit up a heartbeat url to let FON know you're using the router. You can easily install your own firmware such as a unmodified OpenWRT or DD-WRT and run a cron job to hit up the heartbeat page. $5 linux router becomes yours to use as you see fit ;)
Here's some URLs breaking it down:
http://www.twindx.com/node/106 and http://www.twindx.com/node/109