It polls the server once per 30 seconds (it's the default). The polling interval can be changed via '-i' command line option.

That's a bit fast. And uselessly so, because the frontpage is only regenerated every 90 seconds. How about putting your email in your profile so we can continue this by email?

Done. (it's peter at catonmat dot net)

kinda disappointing that in 2008 we still have to poll to get any sort of push on the web. But hey, it works. (yes there is the "comet" style of things to - perhaps pg will provide some API to work like that).