After holding the Delete key on your iOS keyboard for a few seconds to delete text, you'll notice that iOS will begin to delete entire words to save time. Wouldn't it be nice if, instead of waiting for it to kick in, you could immediately invoke entire word deletion using a keyboard modifier?
That's the basic premise behind DeleteCut. It's a jailbreak tweak that allows you to quickly delete whole words when pressing the Delete key while holding the Shift key. If you're a prolific typer, then this free jailbreak tweak is bound to save you some time.