reBOOT v3 now supports masonry (aka isotope) style products layout display!
This displays products in a responsive 'cascading' grid fashion, which is useful if you have product blocks of varying heights, eg. varying product thumbnail image sizes (similar to the
Pinterest style views).
It is not as search engine friendly as the product grid/row 'switchers' layout display, as product descriptions are not displayed.
However, if enabled, the product upselling / recommended products still use the switchers layout.