There are tons of awesome live, bootable Linux systems, but what if you need to run OS X? Reader Will shows us how to put a portable version of OS X on a thumb drive and boot it on (most) Intel computers.
People put linux on their flash drives all the time. They also get hackintosh on their hard drives quite often. However, it’d be nice to be able to get the same live experience we get with Linux using OS X. With a distribution of OS X 10.6.2 called iPortable Snow, we can.
You’ll need an actual Mac to create the thumb drive (some Hackintoshes may work; mine didn’t). Search your favorite torrent site for iPortable Snow and download it. While it’s downloading, format your external hard drive or thumb drive (You’ll need at least an 8 GB thumb drive for this). Open up Disk Utility and select the drive you want to put OS X on. Go to the Partition tab and create one partition, formatted as Mac OS Extended (Journaled). Hit Options and make sure you’re using the Master Boot Record option. Then hit Apply to format the drive.
To read more about this fascinating subject have a look at Lifthacker.com