Did anyone try logging in to the yahoo mail interface with the N900 browser?

I'm wondering how it works as far as screen size, keyboard shortcuts etc.

It works fine.
Exactly the same as how you see it on your Firefox browser.

As for keyboard shortcuts, I can't confirm because I'm using the classic version.

Ok I've tried switching to the new version, it looks fine. Although the shortcut isn't quite working for me, as everytime I try to use it (n for new email) it typed 'n' into the address bar.

maemo browser simply catch the key press and not passing the key event to the web app. so you'd not expect to use keypress event in any web app.
It's rare to have a web app to respond to keypress though. however, an option whether to prompt for address or be able to use keypress on web apps would be nice to have. do you think so, developers?

Thanks.

Still waiting for my N900 from Amazon...