A set of helper functions (aka CRUD) that make it easier to work with Drupal data structures by providing some wrapper functions. Include crud.inc in your install profile to use them. crud.inc was originally developed and maintained by Boris Mann of Bryght. There is now a rag tag band of developers including moshe, quicksketch, webchick, and dww who add a little more each time we build an install profile.
Please help by getting similar functions into core for Drupal 7. Please ask for co-maintainer status if you are also developing install profiles and would like to contribute.