I just got a replacement pre and I actually WebOS doctored it to 1.4.5. When I added in my Yahoo Mail account, it would initially sync fine, but any new mail will not show up in the Inbox. Nor would any changes I make to the inbox on the Pre would show up on the computer. The other folders seem to show up correctly. It seems to be just the Yahoo Inbox. I tried gmail and I get my mail fine there.
Does anyone have problems with Yahoo mail at the moment? I have tried several times to delete the account and then add it back to no success.