According to the site, an accountability partner would be someone you talk to at an agreed time. Basically, someone you hit up at a given time and let them know whether or not you PMO'd, edged or whatever else. I guess it helps because you have to be accountable to somebody if you do PMO.
Sorry man, but I won't be able to rigorously contact someone everyday at a given time. If you want to hit me up with a PM though, we can exchange emails and chat more personally about anything if you want. This would be an easier method for me.
I've been at this for about a year and have gained plenty of experience as well as consumed lots of information on the subject, so if you have questions, I might be able to help.
So hit me up if you want!