The PPS increase apparently driven by expectation of a material PR by 3/15/11 appears to have provided support for very decent selling prices for some MDGC shareholders today.
2,022,298 shares were sold at $.0044 - $.0045 with the exception of one later-day sell of 41,818 shares at $.0036.
Comparatively, 1,252,493 shares were bought, starting at $.0049 and ending at $.0042.