The OP is talking about a jailbreak app called Safari Download Manager, not the way iOS handles downloads.
I haven't seen anything about one yet, but this is the opening line on the dev's website: "My name is Dustin L. Howett, and I'm a 21-year-old freelance software developer. I tend to start to work on a lot of projects, but rarely finish them, or even work on them, until the motivation strikes me."
So if he's not feeling motivated, it seems it might be a bit.