You could have also used GWT. The few Cappuccino apps I have seen are more attractive, but that might just be because GWT apps tend to be written by Java people

You could have also used GWT. The few Cappuccino apps I have seen are more attractive, but that might just be because GWT apps tend to be written by Java people and Cappuccino apps by Mac people. Hate to make a gross generalization like that, but Java apps with UIs rarely look good.