I've been doing a lot of work with Kettle as well, and it is a handy tool (albeit with a few warts).
What I think would be handy for use in an organizational setting, where "business users" might want to use some of the transforms, would be a way to publish transforms somewhere, making them discoverable and accessible to others. I don't want to make it sound like I'm talking about UDDI or anything (although, thinking about it, maybe you could use that), but just an easy way for a Joe Business User to get a list of available transforms, some explanation of what they do, what input they take, what they output, etc. And maybe a way to make changes to the "small stuff" (like the input and output path, for example) without having to load up Spoon and edit the ktr that way. Since transforms can be parameterized, that should be doable...
You could also picture combining this with something like a Yahoo Pipes like web interface, to let you define your own chains of transforms and operations as well. And hell, a web-based interface for editing ktr files would be a pretty interesting thing as well, if somebody would build it.
What I think would be handy for use in an organizational setting, where "business users" might want to use some of the transforms, would be a way to publish transforms somewhere, making them discoverable and accessible to others. I don't want to make it sound like I'm talking about UDDI or anything (although, thinking about it, maybe you could use that), but just an easy way for a Joe Business User to get a list of available transforms, some explanation of what they do, what input they take, what they output, etc. And maybe a way to make changes to the "small stuff" (like the input and output path, for example) without having to load up Spoon and edit the ktr that way. Since transforms can be parameterized, that should be doable...
You could also picture combining this with something like a Yahoo Pipes like web interface, to let you define your own chains of transforms and operations as well. And hell, a web-based interface for editing ktr files would be a pretty interesting thing as well, if somebody would build it.