You're reading dismissiveness into my post that was not intended. Uber has done something remarkable, but it is not so novel as to justify calling everyone doing the same thing a "clone".
Not to mention Uber is not the first GPS-based car-hailing app. They were the first ones that were able to gain mass traction - which is an achievement in and of itself, to be certain, but also makes claims that "X cloned Uber" somewhat laughable. If we're going to split hairs about who copied whom, Uber is on the wrong end of that statement.
But it's precisely because Uber was able to get such traction, that other companies followed into the field. Lyft and Gettit may not be "clones", but I'd wager the followed the industry leader (Uber) in the the field.
Gettit is as much a clone of Uber as Androids a clone of iPhone. Not an exact copy, but probably wouldn't be existing without the other paving the path.