Indeed Axure is well known prototyping tool. However we aim to create a tool thats simple,easy to use and entirely online. It is still quite new (we used it with our clients and than released it to the public in Jan 2009) and soon we should have a couple of very unique features that make us stay ahead of competition .

You can contact me for special code to get extended 60-days trial for testing. We also have regualr 30-days trial on any account - no credit card is needed and registrateion takes under 20 seconds) All your feedback is higly appreciated!