A hacker claims to have installed Mac OS X Leopard on OQO's signature UMPC, the model 02. The software is arranged in a dual-boot configuration with the default OS, Windows Vista, and is said to run virtually everything a Mac would also be capable of, including Cover Flow, Time Machine and the Dashboard. Speed is the major concern at present, as some applications run comparatively slowly, and Leopard requires two and a half minutes to load. Features such as sound, Wi-Fi and Bluetooth are all supported.

The only missing element is said to be support for WWAN, referring to cellular broadband. The hack also requires special effort to install, those its creator suggests that it is not out of reach for other tech-savvy enthusiasts. A video demonstration of results can be seen below.