Jakob Neilsen has written about the 10 best application UIs of 2008. And NZ-made Xero comes in at #10! First of all, congratulations to Xero, the Team and Rod Drury!
Neilsen is recognized as one of the leading usability, analysis and UI design experts in the world. So his recognition of Xero, from little old NZ, is significant. He went one step further and used Xero as an example of how to implement lightboxes / modal dialogues well. He also gave Xero extra kudos for the emotional design, given that Xero targets a traditionally 'dry' audience: