Text Jumbler is an interesting yet pretty much useless application.
It was based on a chain email I got a while back which explained that if all but the first and last letters of a word are jumbled up they could still be read.
To test it out I built this little application that jumbles up text in this manner.
I find this application useful for annoying friends that are sticklers for spelling.
As a side note I did a bit of searching on the web and found this page where the author explains where this theory started and explores the science behind it.