RIM has pushed out another update to the version of BlackBerry 10 currently running on Dev Alpha devices. The updated version is OS 10.0.6.670 and there is no change log available right now. We’re hoping for some improvements, and maybe some new features, but won’t know anything until developers find new features or RIM sends out some official information on the updated OS version. If you’re a developer and have a Dev Alpha, make sure you grab this update and let us know what changes you find.
Source : CrackBerry