The Cornish Rex cat sheds little hair in comparison to most other cat breeds. This page tells you more about this, as well as lots of other information about the breed.
Before we get into details, here's a quick overview:
Personality: People orientated, loving, energetic, playful
Suits: Lively families, busy households with children and other pets
Other: Want to be the centre of attention, need stimulation and lots of space to run around and play
1) What are they like as pets?
They're intelligent and very active. These cats want to be the center of attention and love people, so if you own one it's quite likely he'll never be far away from you!
They have very short, curly hair which requires very little grooming. Their hair also sheds much less than most other breeds, so if vacuuming cat hair every day isn't your favorite pastime they may be a good choice of breed for you.
They do shed some hair - unfortunately there is no such thing as truly non shedding cat breeds.
They aren't hypoallergenic, as they still shed the skin flakes which cause allergic reactions in some humans. However, some people who are allergic to other breeds find they are OK with the Cornish Rex.
This is a healthy, long-lived breed.
2) Looks, build, colors and markings
These cats have big ears, high cheekbones and fairly pointed facial features. They have long, slim bodies which are quite muscular due to the liveliness of the breed. They have long, thin legs, a long tail and very soft, short, curly fur.
They come in just about every color you can think of, including solid colors, mixed, tabby and calico.
In 1950 in Cornwall, England, a cream colored male kitten was born with fur that consisted of many tight curls. The rest of the litter were standard domestic shorthair cats.
The owner took the cat to a geneticist, who concluded that the curly hair was due to a gene mutation.
The cat was mated with its mother, and more kittens with curly fur were born... the beginnings of the breed.
The Cornish Rex cat is similar in looks to the Devon Rex cat, but it's believed that the genes that cause the curly hair in the two breeds are different.