I wouldn't count this as abandoned, it's not like people haven't taken year long hiatuses between updates before. Wish there was a walkthrough though, hard to tell whether an event isn't happening because I'm not doing the right thing to trigger it or because it's not implemented yet.
For the people wondering though, don't let the version number fool you, this game has at least 12 hours worth of content, more than enough for a 1.0 game. Easily the best adult game I've played.