That's a good question. I will avoid to make firm commitments to any date, but here's the release plan, very roughly (each line corresponds to a distinct release):

- fixes for items with diacritics; transition to a C wrapper to interact with the CCalendar API (by the end of this week)

- support for birthday calendar (to be confirmed once I've checked the API), support for recurrent events, code clean-up

- GUI, plus any other bug fix for issues found up to that point. This will also be the moment when I will properly package the application, since it will be also usable by people not comfortable with the command line.