Ability to use Flash rather than cfgrid via Flex. Ability to generate Flash forms live from CF. CF dynamically generates the MXML and routes it through the Flex display engine. You can even rapidly build a tabbed interface via simple CF tags. It will even do an accordian by changing one attribute. It’s even possible to bind the form fields to the grid and prepopulate a form. All this in 27 lines of code. Very cool.

cfdocument tag — by flipping a switch it’s possible to create a report defined in html to a pdf document. It even puts the column headers at the top of each page.