Him
Given the low power and 4 USB ports of my shiny new Raspberry Pi B+ I've been able to plug in my SunnyBeam to extract the data live.
http://www.earth.org.uk/live-grid-tie-stats.htmlI may build a gizmo to power down the SunnyBeam to save the 200mW it uses all the time when plugged in to USB.
Rgds
Damon