A simple Twitter feed that outputs your latest tweets in HTML into any post, page, template or sidebar widget. Customisable and easy to install!
Be warned! This plugin author decided that the API update was a great time to start charging for something you already use. In addition, your Admin for using the Free plugin will be filled with Ads and "Go PRO" links.
Now, I will be the first to wish that plugin developers earn a decent living, but I feel that it is appropriate to develop new features for your paid version of the plugin. Instead, the author has lowered the bar: pay for the same functionality that you already have, or get something worse for free.
My vote--is to find another solution where the plugin author is a consistent. Offer a plugin for free with paid version, or offer it for free--but, to demand money for something that used to be free feels like extortion.
UPDATE: You don't need the FREE version of the plugin at all. According to user: @froginthevalley Sylvain Carle (from Twitter)
If you are hosting your own wordpress.org blog, the easiest way is to add a text widget to your sidebar (in Appereance » Widgets) and paste the widget code you get from https://twitter.com/settings/widgets/
You can find the entire discussion here: https://dev.twitter.com/discussions/10633