Great alternative!

I really like the app. Slick interface, powerful features (TweetMarker!) and fast. Theres just one thing and Id give 5 stars: Why cant I disable the sidebar? It occupies too much space for me. My setup is to always show my Twitter client an have other windows like Safari open next to it. On a 13" MacBook Air this is kinda hard to achieve with Osfoora. Also the app only lets you resize the width to a minimum amount. But all in all really great work!

tfrischholz about Osfoora for Twitter, v1.0