I just wrote the following in a feedback form within Yahoo Mail.

Hello!

Firstly, I would like to point out that Yahoo Mail Beta has so far seemed to be a great improvement on your already fine web based email offering.

I am writing to ask that you would have confidence in your web designers, since in Yahoo mail Beta, the 'you are using an unsupported web browser' splash page is a bit overcooked in my humble opinion.

I am at this very moment using Epiphany, the default web browser for Gnome, a window manager used in many GNU/Linux/Unix operating systems.

Using Epiphany, my email account worked fine on Yahoo Mail beta, perhaps even a lot better than the old version due to all the new Ajax goodness.

You do not need to support browsers, you need to support standards, after that it is up to me, the consumer, to decide what browser I use.

If you write your website according to the standards, then your website is very likely to work in Epiphany. If your website works in Mozilla or Firefox, then it is 99.9999% likely to work in Epiphany - it is, after all, built upon the same rendering engine ('Gecko') as the Mozilla browsers.

So please, do not sell yourself and your design staff short, your website works, after that it is our fault if our browsers work or not.

Best Wishes,