The California Space Authority posts that a new draft of the 2008 Regolith Excavation Challenge rules have been sent to NASA. Also, they are building a FAQ based on common questions during the draft phase.
Meanwhile, Technology Ranch, a competitor in the Regolith Challenge, posts about NASA SBIR (Small Business Innovation Research) grants. He compares a SBIR solicitation for "Lunar Regolith Excavation and Material Handling" to the Regolith Challenge.