Apple updates two NetBoot files
Apple updates: NetBoot Desktop Admin and ASIP Agent Update
Mac OS X Server report updated: NetBoot page added
New blinking folder icon at startup; NetBoot at startup: some comments
OS X TIL articles: Mac OS X Server and NetBoot images; WebObjects 5 Update 1 overview
Apple releases Server Admin Tools 10.4.7: Includes app for creating NetBoot and NetInstall images of Intel-based Macs
OS X Utilities Updates: NetBoot Extras update; Snard; Dialpad; Panton ColorWeb Pro; WebSTAR Server
OS X contains a number of hidden utilities that are generally accessed via System Preferences, but which can also be launched and used independently.
Updates address hangs during heavy CPU loads and more.
If you have an early- or mid-2011 Mac, a firmware update for it might be available.