I'm also in favor of adding Talk links to the apps. In fact it did a very simple PoC[1] for the Android app a while ago, which I just rebased and updated comments yesterday.
It's not perfect but I think it works pretty decently with regular Talk pages. For Flow pages[2] more CSS is needed to make it look right. I've dabbled with getting some Flow CSS included into our CSS bundle but there are still a lot of issues left besides that[3]. I think for Flow pages we would really need a native presentation in the app to do anything beyond a read-only experience. There's an API for that.(TM)[4][5]
But again, even a read-only experience is better than none.
Cheers,
Bernd