There are a whole LOT of people who will be using Poser 4 for the foreseeable future. Like many others, I'll have to upgrade to a better computer before I can get Poser 5, so for me it MAY be sometime late next year, before I can make that change, and there are many others in similar circumstances. No matter how good P5 is, P4 is going to be around for some time yet. Please, make it for P4. P5 will still be able to use it.