In reply to Arūnas.

Kristine, thanks for your input.

Adding categories to posts are coming in next release (0.3) (in a few days, probably). Ability to manage categories themselves (add/rename/delete) is scheduled for (0.4).

Post scheduling issue is a bug, should be fixed in 0.3, too. A published post can be moved to future by setting a future date, but it does not work for drafts at the moment (a bug, as I said).