Hi Jason,
your chipset is definitely not supported yet. One of our developers just asked VIA for a datasheet of your chipset, and if we're lucky, we might have more info soon (few days).
In the meantime, it would be very helpful if you could open one of those machines and check which flash chip it uses. As a general rule, flash chips usually come either in a 32-pin PLCC package (almost square, 11.5mm x 14mm, pins on all 4 sides of the chip, model number contains 29,39 or 49) or an 8-pin DIP/SOIC package (rectangular, roughly 9 mm x 6 mm or smaller, model number contains 25 or 45). Most of the time, the flash chip has some sticker on top (peel it off to read the model number etched into the chip). A few photos of flash chips are here: http://www.flashrom.org/Technology#PLCC32:_Plastic_Leaded_Chip_Carrier.2C_32... If you can't find the flash chip, just upload a high-res photo of the mainboard somewhere and mail the link for that photo to our list. We're usually pretty good at spotting those things.
Any further development will be against the latest flashrom source code from subversion. http://www.flashrom.org/Downloads has more info on how to get it.
By the way, you can log all output (including warnings etc.) to a file with the --output parameter. This comes in handy if you don't want to cut-n-paste flashrom output from a terminal. ./flashrom -V -p internal:laptop=this_is_not_a_laptop --output logfile.txt
Regards, Carl-Daniel