Ubuntu Desktop Fix

Sometime Ubuntu desktop was broken and no Dash Home and Launcher can be seen. So we need go to the 1st virtual terminal via "Ctrl + Alt + F1", and run "sudo apt-get install ubuntu-desktop", after installation, run "sudo reboot" and will see the normal Ubuntu desktop.

Android 5.0 Lollipop on Nexus 7 and Rooting

Android 5.0 Lollipop will be released in November. It is possibly the best and biggest update from Google.

The Android 5.0 SDK is ready for download. The preview versions for Nexus 7 and 5 can be downloaded from Android L Developer Preview site.

It may be also rooted, thanks to the work provided by Wugfresh. Dallas Thomas gave a detail instructions.