It took me three sessions of a few hours each to write the current one. If I start writing the next part now, traffic to current one will be dead before it's finished.
Also it's hard to get people to click through to anything, be it another article or a sign-up to get updates. Most people go back to HN and read the comments or another article. I know I do.
Edit: People didn't seem to be at all interested, so I removed the sign-up link from the post.
FWIW I'm very likely to check out the second part, but completely unlikely to fill out the form that you provided. Not sure it's rational, but my guess is that others can feel the same.
Also it's hard to get people to click through to anything, be it another article or a sign-up to get updates. Most people go back to HN and read the comments or another article. I know I do.
Edit: People didn't seem to be at all interested, so I removed the sign-up link from the post.