there are a few differences to the topic system in so much as you select calendars not forums and you are hooking in to the calendar event display. It is also tailored to work with other existing hooks such as:
devfuse - calendar topics
dawpi - map in events view
as well as the mods I put in the community articles ;)
Freebone - I will sort you out an acc on our server and PM you the details
We are working with Esther to develop a calendar events version of this application, specifically for events. In combination with other hooks for posting a support topic and including a map on the event page, exactly as you have shown in your link. Once the cal template system is released, Im hoping to then work with Esther to develop a more detailed RSVP setup.
If push comes to shove, I can set you up a account on our dev site so you can have a play with it, but it would obviously be preferable for Esther to have a test board.
PS: I would also need Esther's permission to give you access to our dev site as it is obviously a private setup at this time
we really like this hook and have been using on our DEV site without issues for some time now.
However, we have found a couple of things on our live site:
#mention does not work if the reply contains a quote
#mention does not work 100% of the time, we suspect that this is due to our server's response being slow when the topic is submitted, causing the member look up to not complete (this is only a guess) is there a way to force the topic to wait until the server responds with a valid name, before the topic is posted? - it's just an idea, ideally we need a faster server response but I can imagine on boards with several thousand members to look up, that this may become an issue for them also.
Its not a deal breaker if the above cannot be addressed, its just some observations for you to consider