In late 2006, early 2007 I worked on a site like TaskRabbit, but it was called Oddjobr.com (or oddjobr.net but I think I had both to be honest). I let the domain go (apparently it was picked up), but at the time I had a mostly working website up and running (it was a software lifecycle class project - with a team of just myself). It was a reverse auction though, bidding on jobs.<p>Are you sure these are clones? I didn't check em all out, but just throwing out that if I thought of this idea independently, it is likely others have too.
The model is simple and easy to replicate, so it makes sense that it's being cloned.<p>I personally know of 2 TaskRabbit clones that are in development here in Toronto..