I posted something on this topic a few weeks ago, but I guess no one here picked up on it. Anyway, there is no way software can help with the absolute on/off contrast ratio developed by LCD optical engines. The panel's bias voltages are usually set for minimum and maximum twist capability and no additional amount of bias or scan rate will drive the panel further into on or off states.
The major contrast factors in an LCD engine are the effectiveness of the polarizing plates (pre & post panel) and the particular properties of the TN "gel" in the twist layer of the panels. Flyeye integrators also detract from contrast as the lamp beam, although it may be more uniform, is not as collated as it could be from light developed by a well designed lamp/reflector assembly, particularly given the short distance from the light source to the panels found in these compact projectors.
The info I have to date indicates the panels in the new Sanyo's high contrast units (both Epson & Sony panels) have a different formula in the gel [and maybe a different twist ratio 270 vs 90] and they use new, highly effective pre & post panel polarizing plates.
Software adjustments or bias level tweaking usually yield marginal improvements in LCDs unless the units were not adjusted properly from the factory.
However, it is theoretically possible that installing more effective primary polarizing plates can make a difference in absolute contrast ratios on existing LCD projectors [but probably at the expense of some brightness].
It sounds like the info from the Sony tech is a typical misinformation response to a competitor's early edge