Custom Launcher that supports Google Now integration? I just upgraded to a Nexus 5 and am setting up my launcher + icons.  Right now I'm using Nova Launcher, and a like a lot of things about it, but it's lacking in Google Now integration. Two things in particular I miss:


Having Google Now start listening when I say, "Okay Google" without pressing a button - this still works once I'm in Google Now, but not on the Nova Launcher homescreen (as it does with the stock launcher).
Being able to swipe over to the left from the homescreen to get the Now screen 


Are there any launchers that support these features, especially the first one?
The Google Experience Launcher is actually built into the Google Search app along with Google Now. This is why it can listen for 'Okay Google' and have Google Now accessible via the left swipe. Ars Technica has a good article which goes into more details on this.

There are some launchers that support gestures, which might be similar to the left swipe to access the Google Now page (although they will only be able to launch Google Now in the same way an upward swipe does).

I don't think there are any that support saying 'Okay Google' from the homescreen though.