[eluser]Thoer[/eluser]
I'm not sure how fast you need this, but I'm pretty close to releasing a similar open source application, based on codeigniter and codeextinguisher. I'm done with my Hungarian docs and about to start the English one. It would still make a lot of sense to add the job of sending out emails to the cron, but it will do well without it. It will share a lot of features with phplist. It sure won't be THAT mature for a while though.
