Viber, the popular cross-platform messaging service for smartphones, is no longer just for smartphones. The company has today launched new desktop applications that allow you to chat with friends; send stickers, emoticons, and photos; and make calls from a Mac or PC.

Are you still using your Mac or PC without an antivirus application? Don’t leave your personal data vulnerable. Get Bitdefender Antivirus today for just $40 and save $20 off its regular retail price. It’s the first and only antivirus software that protects two operating systems on one computer, which makes it ideal for those who run Windows on their Mac.

Here’s an interesting fact for you. Facebook Home — the new app that deeply-integrates Facebook into Android smartphones (and probably most notable for its system-wide Chat Heads messaging) — doesn’t work as intended on iOS… but it was actually prototyped on Quartz Composer, Apple’s visual development environment distributed as part of Xcode!

Google launched a redesigned Google Play service last week, with a brand new look that better fits Android’s latest Holo user interface guidelines. The update is also intended to make it easier for you to discover apps, games, magazines, and other content, and it’s rolling out to Android devices now.

If you haven’t yet received the update — maybe because you’re outside of the U.S. — and you’re tired of waiting, you can install it manually. Here’s how.

You have to be a fool not to backup your computer. Your hard drive is full of precious photos, home movies, files, and documents that you may never get back if your hard drive fails or your computer is lost or stolen. But don’t just backup to another hard drive that has the same chance of dying as the one inside your PC — backup to the cloud instead.

With 100GB of storage in the cloud for just $29 from SOS Online Backup, you can store everything that’s important to you online, ensuring that it’s still there for you if anything happens to your computer or your external hard drives. It’s safe, it’s secure, and it’s always there — no matter where you are or which device you’re using.