All the latest news is on ARSocialDummy Twitters account.

At the moment I am not sure, it isn't complete yet. But is close.

You already do. The Unlimited Messages in-app purchase is already available.

Sending photos in Messages is coming in v5.0. Whatsapp however, is yet to be worked on.

Not yet no. I am only one person who at the moment don't have time to work on the app.

Swipe the user to the left. Please read the FAQ/Knowledge base

Would ideally come out with the other stories feature too.

Fixed in v5.0