Author here a few updates since this was published two years ago the service mentioned now called https webapp io eventually made it into yc s20 and still uses postgres as its pub sub implementation doing hundreds of thousands of messages per day the postgres instance now runs on 32 cores and 128gb of memory and has scaled well.

Thinking outside the box a misguided idea the truth behind the universal but flawed catchphrase for creativity posted february 6 2014.