With all the talk of lite/full roms, it would be awesome to have a customizable rom. Back in the dark ages when I was using a T-mobile PocketPC phone (I know, I am ashamed ), I came across something called rom kitchen:
XDA-Developers ROM kitchenIt basically allows you to click which programs you want included in the customized ROM. It has a bar on top that tells you how much ROM space you have, etc. The scripts for it are OSS and run on linux, so it might not be that hard to modify for Cacko. It would be so sweet if each person could choose exactly which packages to include in their rom and would be nice for Maslovsky to not have to listen to "Opera suxors, use netfront!" "No netfront is lamers, opera only!"
Also, it allows people to make sure the rom uses all available space by allowing you to roll ipks you know you will use and keep into the rom (of course, makes version upgrades a pain, but still).