Sounds like Collage
My Product Page is built using Collage. I think it works fairly well (although its getting quite large).
You can have it all with stacks
Such a Plug-in for RW?
Where are the developers? Maybe they make a new jquery slider?
Sliding Product Page: http://simonlevenson.com/store/
This store is build with http://www.wazala.com/
has Text, Pictures, Categories, Keywords, Related Products, Twitter, Facebook, Faforites, Searchfield
and a cool fast sliding Navigation!