Hi! Just a quick recommendation...I would include links to posts that explain what Zentasktic is and why people want to use it/sign up for/test it. A lot of new-to-you readers are going to see this and hesitate because they don't know what it is, and the sign in/register page is not exactly welcoming, especially for curious people.
I would definitely include your blog post The "WHY?" with future announcements. Just some random thoughts! Best wishes on your project :)