The Ubuntu MATE 15.04 version for Raspberry Pi 2 has been quite successful, and it seems to soon become the favorite OS for the small mini-PC after the official Raspbian OS.
The image is based on the regular Ubuntu armhf base and is optimized for the Raspberry Pi 2, one can comfortably use applications such as LibreOffice. Since, microSDHC I/O throughput is a bottleneck it is recommended to use a Class 10 microSDHC card for best performance.User needs a microSD card which is 4GB or greater to fit the image. The file system can be resized to occupy the unallocated space of the microSD card, similar to Raspbian.
The good news is the latest version of Ubuntu MATE v 15.10 is also coming to Raspberry Pi 2 and will be available for download on October 22, 2015.


Portal is new mobile app for Apple iOS and Google Android OS users which makes transferring pictures, videos, and other files from your computer onto your phone simple. All it takes is to open the app and pull up portal.pushbullet.com on your computer and you're ready to go for easy drag-and-drop file transfers. Files are transferred over your WiFi connection. This means they don't count toward your mobile data limit and that files are transferred very quickly (even if they're over 1 GB in size). Users can transfer individual files, multiple files, or entire folders at once. Also, Pictures transferred with Portal are automatically put into your phone's Gallery.


Apple iOS 9 brings a major shift to company's policy and will now allow developers to create extensions that block web-content on their devices. There was no public announcement regrading the new feature but developers running iOS 9 have found the "content-blocking" feature enabled in their device's Safari browser settings as shown below.