Commenting/liking is basically done, just have to get commenting from the feed itself instead of the expanded post view.
I will try to get an inline composer instead of a popup (and drafts instead of discarding your current post). Meaning that it'll just be a "comment card" with an editable textbox, right next to the comment/post you want to reply to. But that'll come later, not at launch.
Next thing to work on is feed filtering & switching between global & personalized feeds.
I might do a public release tonight without those two features though. It's enough for users to use without too much complaint.