Voyager (Score 1)

A while back I worked on the implementation of a few web banks based upon the Corillian web bank product called Voyager. It runs on IIS and has no browser restrictions really. Mostly it was the individual banks that put restrictions on the browsers because it was too expense to develop and test for small markets. There is no real incentive for banks to expand the range of supported browsers. Banks are interested in predictability, they don't want to be caught out by problems with an obscure browser that 0.01% of their customers use.