The New York Stock Exchange has decided to learn from NASDAQs Facebook disaster and simulated a Twitter IPO to make sure that the NYSE could handle the traffic when Twitter's Stock goes live. Twitter's stock is expected to fetch around $17 a share, making the company worth about $10 Billion. Leo says it's very interesting that a company that hasn't really made any money should be worth so much.
There are several ways to read and post to Twitter, with the various Twitter clients that are available on desktop and mobile. One of the ways Leo consumes news from Twitter is by using Prismatic. This gets links that have been shared on his Twitter timeline, and presents it to him in a news feed. It's available at getprismatic.com.