Greek text can be helpful when designing initial design comps and prototypes, where the actual content isn't important. 4guysfromrolla.com has developed a neat little thing, which can generate a specified number of fake latin paragraphs for you.
Jakob Nielsen has an article about how greeked text can come in handy, when you want to test how easy users can identify the location of different content areas in different layout templates.
Links:
- The fake latin text generator
- The article Testing Whether Web Page Templates are Helpful
Henrik Olsen
- November 27, 2002
See also: Tools (49) Wireframing and prototyping (29)