I wonder if any of you have tried the new Tamron 18-270mm zoom and if so what do you think of it? I'm thinking about it as a general purpose lens for my Nikon D5000 as I currently have just the 18-55 kit lens. I'm attracted to it because it is relatively light, other wise I'd go for the nikon 18-200mm but think I might struggle with the weight.

Thanks,
IzzyB