I mostly keep up with my stream as a part of my wake up ritual, but Twitter does have problems. One important question, however, is how much room Twitter gives

I mostly keep up with my stream as a part of my wake up ritual, but Twitter does have problems. One important question, however, is how much room Twitter gives you to change things. There was a mention a few days ago saying Twitter has rules about what you can do. Two obvious changes I'd like to see? 1. The ability to search my own history and that of my friends for when I want to find a link someone posted a week ago about whatever. 2. A better way to view conversations. Maybe vertical, going down as the conversation progresses, with new branches coming in as new people contribute. All I know now is when a flurry begins, making sense of it in one timeline (with broken reply links from shoddy and experimental clients) and not necessarily following everyone in the convo to begin with, is a pain.