I've also noticed one of my dock icons disappearing, but this has only happened to me once. The big issue I'm having is that my Nexus won't download anything from the market. This may or may not have something to do with me rooting and unlocking the bootloader. But if I use the web market it will push to my phone no problem, but if I try to use the market app, it says "XXX was unable to download due to an error." Also, not sure if this has anything to do with this, but on the web market I noticed I have 2 nexus devices showing, one says "Samsung Galaxy Nexus" the other says "VERIZON Galaxy Nexus." The push downloads only work when I use Samsung Galaxy Nexus. Been driving me crazy. I've cleared cache and data for market app, and have done factory resets. Still nothing.