Try the trial and see how it works.  You'll need a camera and laser though.

IMO, that may be great for making certain things and very not-so-great for making figures for rigging.  If you have a good 3D program that you can either extract topology or duplicate it in order to get a nice, orderly mesh, then you might have something.  Even then, all the work you do scanning a real object and converting it to a rigged mesh may take longer than just trying to accurately model the object.

The best bet is to look at some rapid-prototyping forums and ask around there.  After all, that's basically very similar technology - It's just backwards.  This is converting a 3D object to a mesh.  Rapid prototyping converts 3D objects to solids for use as molds, prototypes, mechanical guides, etc..   But, people familiar with that tech will probably have the best answers.

IMO, I wouldn't invest the money in it for creating Poser figures.  What are you going to scan?  I suppose you could scan a person if they showed up at your studio everyday for a year and you managed to eventually scan every square inch.  (Depending on the resolution you wanted.)

I've seen similar tech in use to scan important artifacts and such so they can be reproduced or otherwise archived.  For that kind of thing, this would be great.  Making props.. possibly.  But, the work it would take to get a usable mesh suitable for rigging is probably too great.

PS - There IS software out there you can use to create figures from photographs.  You might be better served there.  Facegen (the Customizer program) CAN do whole-body conversions.  The methods to use are in their manual/faq.  But, it's not cheap software.  Weigh the cost of David Laser scanning versus the cost of Facegen and Facegen Cusomizer along with a steep learning curve for both and see which you think is the better option.