Originally Posted By: DWallach
Useful factoid: when you download the Mavericks installer, via the Apple Store, it dumps a 5.3GB "Install OS X Mavericks.app" in /Applications. This is apparently deleted after the install is complete, so copy it away before you finish the install. Then, you can install bunches of machines without waiting for that big download.

Yep, same as previous Mac App Store OS installs. One difference this year is Apple included a tool to make a USB drive now, instead of the older method.

Code:
sudo /Applications/Install\ OS\ X\ Mavericks.app/Contents/Resources/createinstallmedia --volume /Volumes/NameOfUSBDrive
--applicationpath /Applications/Install\ OS\ X\ Mavericks.app


Also noteworthy, the download is useful to hold on to for running in a VM. VMWare Fusion and Parallels accept this file as the equivalent of an iso for install.

For anyone with an 802.11g based Airport, Mavericks cannot configure them. The old Airport Utility simply won't run, due to missing symbols in the 802.11 ktext. I'm keeping a 10.7 VM around to configure my one G based Airport Express for now.