GOOGLE NEXUS 10 TOOLKIT V1.4.0 AUTO UPDATE [30TH NOV 2012] AVAILABLE!!
+Added Jellybean 4.2.1 support to the Model Selection Screen
+Updated cwm to 188.8.131.52 (non touch but backup and sideload functions work fine)
+Added adb sideload (install) any zip file feature to main menu
+Added (are you already unlocked) question to 1-CLICK for faster run time (skips the unlock and first boot routines)
+Updated version checker to work on future updates
NOTE: If you have updated to 4.2.1 and cannot get the Auto Updates then you can still do everything perfectly by selecting 4.2.0 from the Model Selection Screen. I will update the first post to V1.4.0 as soon as I can but I have updates to the Nexus4 ,7 Note2, S3 Int and S3 Snapdragon on my schedule so this is the quickest way to update the Toolkit right now.