MidiMagic, I agree with your comment regarding accessibility - some users may struggle to use the hover feature, although by adding a small piece of javascript, the div could be made to remain visible, until another 'tab' from the same series is hovered over.

I disagree that people with dyslexia will have an issue using this - there are many forms of dyslexia, however this would be a debate for another time and place. Anyway, if someone with a disability or accessibility issue can click on a web link, or on the submit button for a form for example, then they could use this feature.

And finally, users don't like waiting for webpages to load. Internet connections have never been faster, yet users have never been more impatient. Therefore any space saving trick a designer can utilise to save the user from clicking a link to a new page, that is a trick well worth using. Thats one reason why Ajax is so popular - that and the fact its cool

R