I have just spoken to Dennis at D-Sonic... the new Anaview AMS 1000-2600 have been shipped to him by the oversees manufacturer, and are currently in transit to Houston (TX). Dennis believes that he might be able to start shipping amps using the new modules in less than one month.
As for audible differences from the previous versions, apparently Anaview has done some considerable work in reducing intermodulation in the treble region on the 2600 modules... I conjecture that this might yield sweeter and more textured treble, as well as more musical information in transients, because of smaller amplitude sidebands in the signal.