As far as I can tell, there doesn't seem to be a view <arbitrary tag> link to press. Until a couple minutes ago I didn't even know you could view all posts submitted under a tag and it was only through modifying the GET param that I was able to see posts on an arbitrary tag.
I think it would be better from a UI friendliness angle if there was either another bar that you could type an arbitrary tag into to get the feed of or if the existing search hubski field allowed viewing tags by prefixing the search term with a #.
Side note: It seems as though people are using #bugski for feature requests so I did so as well, but I'm not sure if there's a #suggestions tag that mk follows or would like us to use. Any opinions on structure?