This is what I ended up being involved with:
- Joined the mailing lists, and updated the Wiki. Eventually joined the new GitHub org
- Created tap4j, using an existing implementation as reference (contacted the author, who helped with some questions too) https://github.com/tupilabs/tap4j
- Created instanttap to validate the TAP streams - http://instanttap.appspot.com/ (surprised it's still working)
- Created Jenkins TAP Plugin
- Updated Jenkins TestLink Plugin to support TAP
- Wrote a quick producer for GoogleTest https://github.com/kinow/gtest-tap-listener
- And wrote a few articles and presented the solution and/or TAP in conferences
- And created the reddit r/testanythingprotocol subreddit to collect links I found about TAP
IMO, TAP was going in the right direction. If it had been adopted by Python or JUnit, it would be much more popular now.