These look similar to those that a mom locally here in OH makes. I discovered them after my son was too big, but people love them!

http://www.lanepieslings.com/page/page/2368201.htm

Her fabrics aren't all as cute, but some are, her prices are lower, and she'll do custom orders!

i found that if the sling doesn't get support from both shoulders i can't carry my baby for longer than 30 minutes. it looks like the ergo (which i have and love) and the moby wrap are the only ones that fit the bill for me. i have a hotsling but it ended up not getting used as much as i wanted it to. next baby i'm buying the moby wrap.

I think its still a one shouldered sling, the style is called a pouch, my favorite for easy popping in and out. I recommend one with a tiny bit of stretch though, like a Kangaroo Korner or Hotsling. Those Amy Butler fabrics look great, but the stretch makes it way more comfy.

Am I missing something? Why not just improve on the design, add so easily adjustable straps, maybe add easy clasps...oh yeah its called a Baby Bjorn.

This thing is just trying to be different. I think the Bjorn or Hotsling are so much better.

I've wanted to try this but my son is way too big now. I'd love one for the next baby(someday). There is a bit of stretch to it which I think would be better than my last pouch. I'd also really like to try the baby k'tan it has two straps and multiple carrying positions. I know people love their bjorns but I appreaciate something a little less restrictive.
Baby K'tan:
http://www.babyktanproducts.com/instructions.html

i have one. i love it. great for quick trips with grabby baby-turn-toddler as the sling is designed for the "hip hold" (not meant for a newborn or small baby).... it holds the kid a bit higher up and closer to your own body.....
for more info images, go to fawn&forest: http://www.fawnandforest.com/categories/21-slings-carriers/products/520-puj-go-sling