Where are all the features?

Missing mute, inline images and smooth scrolling features. Are they coming? I have had this twitter client for almost a year and they have only updated for the retina display macbook pros. Their priority seems to be only the visual aspect. All very nice and all but when I pay so much for an application I expect more (continued development). Other clients have all of these features, get Osfoora if you care more about them (well implemented) or if you care about only the visuals (Osfoora has nice visuals as well). Your choice.

Necrome about Twitterrific for Twitter, v4.4.9