There's some discussion of the OCCI FeatureMatrix on twitter and it seems GridForge is down again:
[Exception in:/common/jsp/menus/top.jsp] Unable to render widget
A SourceForge system error has occurred. An unexpected system error has occurred

If you feel you have received this message in error, please contact the SourceForge administrator and reference this tracking number: exid41B6B5B501246F53D5018763

While it's great to have some external discussion going on this getting is a little embarrassing... at least the Google Code component is up most of the time (if read-only for a few hours here and there - which is still more often than I would like).

Sam