Amazon is trying hard to challenge Dropbox, Google Drive and Microsoft SkyDrive in the cloud storage arena. And to gain some momentum, Amazon has updated their Cloud Drive desktop client with the file syncing feature. Now, it’s possible to sync file across multiple devices using the newly updated desktop client.The desktop app for Cloud Drive was launched in 2012 but it lacked the all important file syncing feature. It is also available only for Windows and Mac users, so no love for Linux users even this time too. Earlier it was also only available through web interface which restricted its use compared to other services. There is still no app for smartphone users, again keeping them at bay.Once installed, the desktop app creates a new folder in your drive. Files or folders copied in that folder will be synced to all your devices and you can access those through any other Windows or Mac device and also the web app. Amazon Cloud Drive offers 5 GB of free cloud storage on sign up and you can upgrade for more by paying $10 annually.If you are not satisfied with your current cloud storage service then Amazon Cloud Drive is worth a try. This also brings another question, which cloud storage service are you guys using?