The one that causes the keyboard to disappear when hitting the space bar after the first word typed? That's the most annoying thing I see. It's almost like a focus change between the text entry field and the app in which you are typing. The app acts as if you've dismissed the keyboard and accepts the entry. This happens to me on Google when I'm searching for, I don't know, anything more than two words "grilled salmon" for example. Instead of typing "grilled salmon" it takes the entry as just "grilled" and Google searches on that term and the keyboard disappears. I have to reselect the text entry field and continue typing. That happens all the time to me since Gingerbread.
There are instructions out there on how to download the Linux ISO file, burn it to a CD and boot to it which automates the process. It worked flawlessly for me. There appear to be better instructions at droidxforums than here for some reason.
