Last but definitely not least (and perhaps the most interesting) is the fact that some buyers ended up with an iPod Touch with no Mac OS X operating system. Instead, through some screw up, they got a model that had diagnostics software installed. The most interesting part of the diagnostics software is a Bluetooth icon with a red X marked over it, adding fuel to the rumor that the iPod Touch does have Bluetooth circuitry and may just need a firmware update to unlock it.
Source:
News.com