Tom Preston-Werner shares his enthusiasm for Dave Peck's online version of the classic game Go, implemented using Google App Engine. He reminisces about his past interest in Go and appreciates the simplicity of the online version, which allows for asynchronous play by emailing players after each turn. The open-source nature of the project is highlighted, with the code available on GitHub under davepeck/appengine-go, inviting others to explore and possibly learn from it.