The very good lens review website Photozone tested the new Sony 18-200mm lens.The results are very good for such a megazoom lens! The only “issue” that the lens is not very cheap.
Read their review: http://www.photozone.de/sony-alpha-aps-c-lens-tests/539-sony18200f3563nex?start=1
A first Lens is in auction on eBay (Hong Kong). In Europe Amazon Deutschland, Amazon UK and Amazon France do have the lens available for preorder.