Samsung has started rolling out a major over-the-air update for its Wi-Fi only version of the Galaxy Tab 2 10.1 in Australia. This upgrade bumps the 10.1-inch slates firmware version up to P5110XXDMH2, which brings a mass of new features, bug fixes and stability improvements.

The Xperia Z1 has only been available to purchase for just over a week now, and Sony is already pushing out an over-the-air (OTA) update to the HSPA+ version of the Japanese company’s flagship smartphone for customers based in India.

BlackBerry attempted to roll out its much-anticipated BBM app for both Android and iOS on Saturday, and whilst the iPhone app made its way to New Zealand, Australia, Malaysia, India and the UAE, Android’s version failed to even get uploaded to the Play Store servers.

It’s Sunday, the time of the week when Cult of Android brings you its report on some of the very best apps we have been using throughout the past week.

This week we have been trying out a very impressive calendar application, a gorgeous live wallpaper, a simple, yet futuristic calendar widget, and last but not least, an extremely useful exclusive app for Samsung customers.

Following Verizon, T-Mobile and AT&T’s lead, Sprint has today announced its own annual upgrade plan, allowing subscribers to upgrade their handsets every 12 months, so they too can keep up to date with the latest and greatest smartphones on the market.