Touch the new action menu (it's an asterisk icon), and instead you're provided with options to make a new tweet with a link to the tweet you've selected, "retweet" the content of the tweet in a new message (with two configurable options for the format you use to retweet), view the author's timeline, view the author's user information, view the entire conversation of which the tweet is a part, delete the tweet [if it's yours], e-mail the tweet to a friend, mark it for later use, or set it as a favorite.

You can also act directly on items within tweets. If someone references a user's @account, when you tap on that name Twitterrific will display a screen with access to that user's information, timeline, and even your favorites for that user. You can also follow, unfollow, or block a user from that screen. When you tap on a #hashtag, you'll see the latest posts featuring that hashtag on Twitter in a native Twitterrific interface, not via Twitter's web version, as in previous versions.

To speed things along, you can even set up tappable shortcuts for some of these features. I configured my app to show the user information screen when I tap on a user's avatar, to display the entire threaded conversation connected to the tweet when I double-tap on that tweet, and to set the tweet as a favorite when I triple-tap on it.

If you tap on a Web link from within the list of tweets, Twitterrific will display it in a built-in web browser, as in the previous version. The big improvement here is the addition of built-in support for Instapaper, Marco Arment's excellent app for saving items to read at a later time. This is one of my favorite features in Tweetie and other iPhone twitter apps, and it's nice to see it come to Twitterrific.

Sadly, one of my favorite features of Twitterrific 1.0--one that turned out to be unique among Twitter apps--has vanished in this version. It used to be that when you replied to a tweet, you'd actually see the content of that tweet while you were writing a reply. That's gone now, replaced by a very nice new tweet-posting screen, with separate tabs for direct messages, replies, and standalone tweets. But the Iconfactory has compensated for the loss of reply context by creating a new "peek" button that slides the screen away, letting you view the original tweet. Even better, you can use the peek feature to quickly add items to the tweet you're composing. If you tap on someone's @account name, a hashtag, or even a URL, it will automatically be added to the tweet screen.