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.

chipsandtv

This widget lets you display your latest tweets on your blog. Various configuration options are available.
Features:
<ul>
<li>No need to enter your Twitter password</li>
<li>No Javascript</li>
<li>Simple but reliable caching, so your website won’t slow down</li>
<li>Various options such as clickable URLs and usernames, date format etc.</li>
<li>Supports multiple instances at the same time</li>
<li>Fully compatible with widget-ready themes</li>
</ul>

Simple Twitter Widget

A simple but powerful widget to display updates from a Twitter feed. Configurable and reliable.

Proper Twitter Widget vs Simple Twitter Widget