Leah Culver, co-founder of microblogging startup Pownce, announced today that she’s joining Plancast, a startup that lets users share their social plans.

Update: Culver will only be working for Plancast on a contract basis, with her long-term future up in the air, according to TechCrunch.

Today is supposedly Culver’s last day at blogging company Six Apart, which bought Pownce back in 2008. After the acquisition, Pownce was shut down, but Culver worked at Six Apart developing a new microblogging tool called TypePad Motion.

Culver said that her next project will be developing a Plancast iPhone app. And yes, it looks like this Plancast news is more real than the joke hire that chief executive Mark Hendrickson announced earlier this week.