The LVDS port supports 3 different types of add on cards.
RGB, LVDS and DVI.
The first 2 are for driving LCD panels directly, the 3rd is for use with a DVI input monitor.
None of the 3 will run a Lilliput monitor. THey are ment for custom display type setups.
This is the DVI card:
Logic Supply - VIA DVI Module & Cable for VIA EPIA EN
and is for a monitor with DVI input.
This one is for 18 bit LVDS LCD panels:
Logic Supply - VIA LVDS-07 Module for VIA EPIA Mainboards
This one is for 24 bit LVDS panels:
Logic Supply - VIA LVDS-07 Module for VIA EPIA Mainboards
The 2 LVDS add on cards let you connect a custom made cable to an LVDS type LCD panel. This can be a great feature if you have an LVDS LCD panel, and just want to buy the add on card ad have a custom cable made, or if you want to use a specific LCD panel for a custom application, or as you indicated, dual screen. But, if you use the LVDS port, with either the LVDS or DVI cards, you can only run the displays as Extended Desktop, or Clone modes. They will not act as independent seperate displays. You can use the LVDS port alone though, as the VGA port does not have to be used in order for the LVDS to work.