http://www.unwrap3d.com Aside from price, there's quite a few things that are different. It's apparent from what I've read that the new version of UVmapper will be extremely impressive, but I suspect it will also have an impressive price tag. Aside from multiple projection and mapping utilities, unwrap3d will allow you to uvmap a variety of model formats. So, no more hard work converting 3ds to obj and praying the file size isn't crippling. Formats supported can be found http://www.unwrap3d.com/formats.html and a feature list http://www.unwrap3d.com/features.html Retailing at 39.95 US, it's quite a bargain, and gaining popularity and support rapidly.