I did actually put a post about a very similar kind of idea in the non-retarded instrument thread here:
–
Some kind of slices instrument creation/editor tool could be nice. Ability to drag and drop slices into different positions, copy paste and repeat them, auto-generation of slice markers if a piece of audio is pasted within the main sample. Generate from a list of samples (create a long sample of them pasted to each other with slice markers between.)
I do understand this may be a headache to many and possibly not get much use though so definitely not a request I would put high in my list of desires. Would enable the cutting and rearranging of breakbeats while being able to view the waveform and then still allow further mangling by triggering different slices of your rearranged break. The Ruler set to Beats would come into it own then for keeping you from going too far out of time (and would need the above mentioned ability to change length of slices) but I think it could give some interesting results and good groove