A wiki of informational slideshows with content from Wikipedia.

Great idea, and good execution, but to me more of a good indication of where things are going than a complete idea.

It also highlights the need for more semantic knowledge within resources like Wikipedia. Grabbing the first paragraph (as the site seems to do) is a reasonable guess at a key summary of a topic, but that may not always be the case..

Speed wise, it still seems easier to just read the start of the article on the wiki (or use your own reading software if visually impaired), although this is a nicer experience :)