Harris Beach has been talked about in the public months back as an Intel reference ultrabook built around their forthcoming Haswell processors. Harris Beach is said to be a 17mm thick ultrabook and that the CPU found within this mobile device will have either a 10 or 15 Watt TDP, complete with high-end graphics capabilities.
Just yesterday the PCI ID for Haswell Harris Beach was added to the Intel driver to recognize the lightweight device. Its PCI ID is 0x0A26.
In terms of the overall level of Linux support for Intel Haswell, it's taking shape and should be in good standing if you're on a new Linux distribution though the support won't be fully polished in release form until H2'2013.