Index: script.txt
==================================================================
--- script.txt
+++ script.txt
@@ -46,11 +46,11 @@
 CNs pose unique challenges for a testbed.  How to
 
 ** Simple management vs. Distributed node ownership
 - manage devices belonging to diverse owners?
 
-** Features vs. Lightweight, low cost (free & open)
+** Features vs. Lightweight, low cost
 - support devices ranging from PCs to embedded boards?
 
 ** Heterogeneity vs. Compatibility
 - work with devices which allow little customization?
 - support diverse connectivity and link technologies (wireless, wired, fiber)?