For example Bryce Johnson of Fourteen40 in a press release about selling his company to Folletts is quoted as saying he came up with the idea about a year ago. Well they pitched my employer about a year ago so I did some research and discovered that they have been failing in the ebook space.
Many of the pages I found at that time seem to have disappeared, or are buried under the new stories about the acquisition.
But here is one. http://www.vcsmart.com/2006/02/fourteen40.html
Not that the product being over a year old makes it bad. But why lie.