I was thrilled to find out that the new Yahoo! mail is now out of beta and that even I, the lowly owner of a french account, am now able to use it. Unfortunately, between the beta and now all kinds of ads were added everywhere:
On this screenshot (showing the drafts folder), ads take up more than half of the useful surface. I'm not gonna use THAT, thank you very much. Especially since 1) it doesn't work in Safari and 2) it's tons slower than Gmail in Firefox and, I bet, in every browser out there.
On the positive side, it's still a lot prettier. And you can read RSS feeds directly in it with an interface very similar to Safari's RSS support, which is a nice touch.