FIELD REPORTS: EdSurge's Betsy Corcoran was thrilled to meet the community of edtech entrepreneurs and educators in Cambridge, Mass., as they gathered for Boston's Educators & Entrepreneurs Summit last Saturday. Twitter notes on the meeting are at #edtech2011. Memorable snippets: Charles Fadel, author of 21st Century Skills: "Your brain is designed to be lazy," something that makes it hard when technology improves at geometric rates. Kickboard's Jennifer Medbery's 14 rules for edtech entrepreneurs included notables such as "do unscalable things," (namely set your ambitions high) and "thank your customers. apologize when you mess up" (in other words, stay humble).