According to my inside sources at Yahoo there is no truth to the rumor that they are in the process of working with Boingo on a combined messenger. At least not yet.
I'm also hearing great news from elsewhere that the Yahoo Messenger with Phone for the Mac, something that has been long expected, and very much demanded by many of the top bloggers who were privy to Yahoo's Messenger plans last year, is not that far away. Early indications are that it will be sometime in May that it will hit a controlled beta group and not long after it will go out for general release.
Bug Brad Garlinghouse or Rock Star Jeff Bonforte if you want into the beta...I sure will !