It's hard to tell from the bubble that is Iowa City. As you can tell, I'm pretty much entirely surrounded by people who support Bernie. One of my roommates is a Bernie supporter, and the other says if anyone but Kasich gets the Republican nomination, and the competition is Bernie, he'd vote for him.
From the Bernie side, it seems like everyone is pretty happy about the tie. I'd wager the Clinton people are also happy about the tie. It really is a win-win situation. I'd wager most people are glad it's over too. Canvassers yesterday were using the line "this is the last time we'll bug you," and I'm personally glad not to get 7 calls a day from phone-bankers and pollsters.
As to going from here, I think a tie is pretty good advertising for Sanders. It shows he can break down the Clinton machine as well as getting his name into the news more. With a landslide in New Hampshire, I think he can go strong into Nevada.