Two days ago I posted a question and mentioned an issue with your demo ASP.NET chat problem when using Safari browser (screen is blank). As I heard, it was supposed to function (with postbacks) and the response I got was "We will investigate this issue and get back to you as soon as possible".
I haven't heard anything back since then, though I made it clear that a purchase decision was hinging on this.
Obviously CuteSoft does not need a testimonial from a large non-profit organization.