“Has Y Combinator lost its way when the latest company is a backup app you can already build such yourself quite trivially by getting an FTP account, mounting it locally with curlftpfs, and then using SVN or CVS on the mounted filesystem”
But in a world where, for example, a competing product like Fantastical already exists, costs less and does more, it does seem valid to be wondering what is going on.
I will not comment on whether this calendar app is revolutionary, it might not be, but it's also possible it is something that will make an impact. There's lots of untapped potential in the calendar and event space, in my opinion.