Calvetica is an iOS calendar, fully compatible with the built-in calendar, that promises a simpler user interface, trading fewer taps for slightly more arcana. It’s a good tradeoff, since people who use calendars use them all the time; learn once, use a thousand times.
I’m not a great fan of publishing software development plans. Either you know what the next version will have, in which case you should ship it, or you don’t, in which case the reader can’t really rely on your plans. But, if you’re writing a calendar, it’s clever to format your roadmap as a calendar.
Calvetica is also interesting for full-throated embrace of Swiss Poster Design in the UI: Helvetica everywhere, and everything is red, white, black, grey, and gridded within an inch of it life.