Complicated story, but here goes:
Today, anything that outputs the Garmin TIS format traffic can send traffic to SkyView. This includes the GTX330 transponder, the Zaon XRX, some of the Garrecht Flarm boxes (for EU folks), and should include the NavWorx ADS-B receiver as far as we know. Additionally, our own transponder receives TIS traffic natively as well. So, unless NavWorx has changed something about how their products work, you should be able to get traffic out of their boxes via TIS format.
We don't have any weather capability today, but that's one of our highest priorities. We're still working on our weather plans and don't have something to announce at this time.
Frankly, though, at this moment, it's hard for us to say "go for it" on a particular ADS-B device. We're just not quite there yet. I know it's a little frustrating, but we're trying to work out a path that delivers the value and functionality that you've come to expect from us.