People say that Gateway never releases updates quickly, but what Gateway does is release an update only after Nintendo releases an update of their own so that emunand will work. Gateway always releases a new update once a new Nintendo update is out. Gateway works perfectly right now and there's no need for an update to get it working on any regular 3DS.
It's the NEW 3DS support that's taking a really long time that everyone's upset about and thinks Sky is "Quick" with updates. As I said before, Gateway releases updates when necessary, when Nintendo updates. We haven't seen another Nintendo update that breaks emunand in so long, so Gateway has nothing to release right now. It does not mean that they're slow or not supportive.
I personally don't believe they're down. They're working on N3DS support but taking their time. It should be out at least next month or the end of this month as an estimate.