Working at a software company that builds portal software for banks. We are not a startup, we are building enterprise software, software that runs on premise and is not sold as SaaS.
However, HN is great inspiration and a valuable source. IMHO enterprise software or enterprise is the market place that is missing innovation and real challengers. More and more companies should fight the status quo and challenge the big dominators (e.g. IBM, Oracle, SAP, Microsoft, HP). And I hope to see 2013 as the year where we see more Y Combinator startups and also HN discussion around startups that do exactly this.