Over half US households with a Mac indoors plan to buy another Mac or have previously owned one, a survey reveals.

MetaFacts principal analyst Dan Ness said: "The Apple-faithful make up more than half of Apple's customers for the first time in more than a decade and up slightly from last year."

"This is good news for Apple. Even more good news is the percentage of Apple households planning to buy another Apple home computer also increased."

"There are still challenges ahead for Apple," continued Ness. "Now, most Apple households also have Windows computers, Apple slipped from being the primary computer used in the home, and the number of households with multiple Apple computers is dropping," said Ness. "If Apple's best customers lose faith, it makes it that much harder for Apple."