Apple will be forced to delay the release of Mac OS X 10.5 'Leopard' until October to ensure Boot Camp supports Windows Vista, according to an unconfirmed report on Macworld UK’s website.

The report – originally on DigiTimes – cites "industry sources" and suggests the delay is solely in order that Apple can boost market share by attracting Windows switchers.

Available for the current iteration of OS X as beta software, Boot Camp allows owners of Intel-based Macs to install Windows XP within a separate partition on their Mac.

However, it contradicts Apple's previous statements, in which it has promised to release the new OS this spring, while Piper Jaffray analyst Gene Munster told clients earlier this week that he expects the new OS to ship in mid-April.