We recently rewrote our mobile website to be a much more modern experience ( http://m.trulia.com ). Our ability to easily deploy and test ideas while behaving almost exactly like our iOS / Android apps is quite powerful. It's also added a lot to the value of a web visitor, which is important given the SEO nature of our content.

In general, I agree with the sentiment that the mobile web is only now getting it's feet under it. My main concern is that Apple/Google prefer app improvements over improving their browsers.