The guys at 30 Boxes have just released a second Twitter application. It is called Power Twitter (v 0.83) and it is a plugin for the Firefox browser that "greatly enhances" Twitter. We haven't tried it yet but here are the features from their website:

* Photo sharing with embedded flickr photos
* Video sharing with embedded youtube videos
* Shared tinyurls are unwound so you know where they link to
* All links are mapped to their web page titles
* Additional user information is mapped to twitter users thanks to data conduits via 30 Boxes (e.g. flickr accounts, blog posts, del.icio.us links, and tons of other social media!)

The first app that came out of the 30 Boxes shop was Twapper