Thanks to a tip off, fruux has been told that the new upcoming version of BlackBerry's OS, version 10, will feature CardDAV and CalDAV support, making the BlackBerry the second smartphone platform, after Apple iOS, on the market to natively support fruux.

The rumour comes from a developer alpha preview of BlackBerry OS 10, where we can clearly see support for the CardDAV and CalDAV protocols underneath Microsoft ActiveSync, Google Mail and IMAP. Unfortunately, we have not yet managed to get our paws on a test device, however we are trying our hardest of course!

As well as this, Google is also shutting down its Exchange ActiveSync service (across all platforms, not just the BlackBerry).

Of course, we're really excited about this rumour, as it means that we can add the BlackBerry to the long list of devices that are supported by fruux! So, if you're the proud owner of a BlackBerry, pretty soon you'll be able to keep all your contacts and calendars in sync without installing any proprietary software or annoying programs. With fruux, any changes will be automatically pushed to all your devices, so you can be sure that when you enter an appointment on the go on your BlackBerry, it'll be ready and waiting for you on your computer when you get home.

In addition to the basic sync functionality, you'll also be able to use our sharing features to, for example, share a calendar with your family or a colleague. If RIM, the makers of BlackBerry OS, also add a CalDAV compliant tasks application to the final version of BlackBerry OS 10 (we unfortunately don't know that yet), you'll even be able to collaborate using fully synced and shared to-do lists with other people. Now that's pretty cool.

The move is especially nice as it shows that BlackBerry is starting to embrace open standards (CardDAV and CalDAV) rather than tying their customers down to proprietary software. Of course, it's important to remember that for fruux these open standards lie at the core of what we do, so the fact that more and more devices are supporting them is absolutely fantastic news.

BlackBerry OS 10 is rumoured to launch on January 10 of next year (we haven't yet heard which devices will be supported by it) and we'll keep you posted on any news or updates here. And if you have access to a BlackBerry 10 test device, then please do get in touch with us – we would love to be able to test fruux with it to make sure that everything's working great for the release!