More timid users might want to sit this one out, but for everyone else, you'll be glad to know that a pre-release build of Android 4.1 is now available for installation on the Galaxy Nexus from Verizon. Many of you are likely aware that custom Android builds such as AOKP and CyanogenMod have provided an early taste of Jelly Bean for a while now, but this time around, the flashable zip files are available directly from Google -- that's right, this is pure