Autogenerated property names for ItemRenderers are usualy 'text1', 'text2', 'image1', etc.
In fact item renderers are applied to value objects with more specific property names (like 'price', 'name', 'photo', etc.)
Flash Catalyst user should have tools to set these names. Just double click on respective Design-Time Data table header and change the name (e.g. change 'text1' to 'title') and thus the code generated will be instead of
That will really help building custom ItemRenderers for previously specified data structures.

Add attributes to the scrollbar property UI to allow easing into user defined distances. This would allow easy creation of slideshow modules such as the horizonal gallery [http://www.google.com/help/maps/favoriteplaces/gallery/#los-angeles-ca] or any of the horizontal scrollers on the home page of [http://www.wsj.com]

(I've created a few slideshow prototypes by now using a combination of FC and FB, so I know it can be done, but it's certainly not easy... and it could be!)

Bonus: If a scrollbar is connected to a data list, one checkbox to automatically calculate the scroll distance per click. Shazam.