It appears they are concentrating on the Virtual Villager series. I have not heard them say a thing about ever bringing LPP to the PC. Although it is a fun game, it is pretty basic, so if they would bring it to PC it would need a lot of additional work to bring it up to the current standards of LDW. Although I'm sure it would be a lot different, I would think it would look something like Nintendo's Dog or Cat games they have for the DS.
As far as screen shots, you can take a look at the LDW page
here. Basicly you are in a fenced back yard and you have several toys for your pet, as well as a brush, food and some medical supplies. And well....there is some pet poopoo you have to clean up as well.
I think it very well could be a great game if they ever brought it to the PC, and I know if would be very well received by their customers and would bring them even more.