I released my first ever module today! Anyone who knows me can probably guess that this is a pretty big feat for me. I'm rather pleased with myself but still anxious!
The module is Twitter Backtweets. What exists right now is the base functionality. Any nodes posted on your site within the last 48 hours are taken when cron runs and put through the Backtweets API. This gets any tweets that have been posted linking to said nodes (URL shortened links included) and posts them as comments to the appropriate node.