mihai-rotaru

Simple plugin which wraps a Twitter widget as a WordPress widget.
In order to use it, you need the Twitter widget’s ID – something like 
332108549298064896. You can see it in the embeddable code Twitter gives you 
after you create the widget. You also need the Twitter username for the account 
the widget belongs to.

Proper Twitter Widget

Makes available a widget which contains a Twitter feed.

Aaron D. Campbell

A widget that properly handles twitter feeds, including parsing @username, #hashtag, and URLs into links. It supports displaying profiles images, and even lets you control whether to display the time and date of a tweet or how log ago it happened (about 5 hours ago, etc).
<a href="http://aarondcampbell.com/wordpress-plugin/twitter-widget-pro/" rel="nofollow ugc">Twitter Widget Pro</a>

Twitter Widget Pro

A widget that properly handles twitter feeds, including parsing @username, #hashtags, and URLs into links.

Proper Twitter Widget vs Twitter Widget Pro