Due to the last change in the API of Twitter it is not possible to visualise the tweets in XML. As workaround you can use this search engine:
That allow you to query twitter for a particular set of tweets. For example if you want all the tweets of a particular user you can use the following syntax
The user is BiondiCarolibr
This look like an interesting theme for WordPress if you look for side-way websites.
It should gives the possibility to integrate and mesh external data sources, I will investigate more in the coming days.
According to the author it should help in spreading your content over the web.
Update: the theme is decent, it does not offer any “viral integration” but in quite lean and simple. If you like the graphic i do not see any reason for not using it.
Here you can find a couple of example: