This is quite strange. I saw a BBC News item on this on an RSS feed, read it, and decided, from the final paragraphs, that it was probably misleading. I then saw your post and tried to find it again. This time Google came up with a report from 2003 http://news.bbc.co.uk/1/hi/sci/tech/2645183.stm
Dato Lortkipanidze thought he recognised Homo habilis, a hominid with a close resemblance to an ape.
But what was he doing in Georgia? The theory had always been that the migration out of Africa had only happened with the evolution of big brains and the development of the tools and hunting skills to make the exodus possible. [...] Another unusual aspect of the Dmanisi find is that it was discovered in the same layer of sediment as other hominids with substantially larger brains - Homo erectus.
Mr Lortkipanidze suggests the variation may force us to rethink the definition Homo.
This then led back to a 2000 report: http://news.bbc.co.uk/1/hi/sci/tech/745080.stm
and on to a 2002 report: http://news.bbc.co.uk/1/hi/world/europe/2096180.stm
and another one dated 2007: http://news.bbc.co.uk/1/hi/sci/tech/7003502.stm
all of which are basically the same.
After some more searching, I found the latest one: http://www.bbc.co.uk/news/science-environment-24564375
, which ends with the paragraphs that made me sceptical:
Chris Stringer at the Natural History Museum in London said that the team had made an excellent case "that this remarkable new skull, with its huge jawbone", was part of the natural variation of the Dmanisi population.
But he said he was doubtful that all of the early Homo fossils can be "lumped into an evolving H.erectus lineage".
"Only H.Erectus survives and becomes successful but at the origin nature was experimenting with how to evolve humans in terms of increasing brain size," Prof Stringer told BBC News.
"Creatures were starting to use tools and eat meat, and this drove evolution, but I think it also drove diversity. The Dmanisi group is an example of the successful species that came out of that and then carried on to spread around the old world."
I'm not sure what is happening here, but the BBC have a habit of saving money by digging out archive material and using it as an article of "latest news". This then is picked up by other broadcasters and repeated as if it were breaking-news.