I haven't had a chance to look at any mounting brackets for the NVG589. As you said, it's very new, so even a google search didn't net any results.
When it comes to switching your 2wire out for it, the NVG589 is only available in select areas right now and for specific types of circuits. When it becomes available to you, AT&T will usually let you know in some form of flier or some other method stating the new services available.
If you encounter any issues with your service or equipment, I recommend checking out our Troubleshoot & Resolve solutions to help diagnose the issue.
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