What ? yes,Yahoo! is going to make an app for mobile phones , like Google did for the iPhone and the Android G1.
The app is going to havee everything you need when you serf the net; Mail (Yahoo!Mail,Gmail,MSN,AOL…ect),calendar,contacts,web browser and almost every thing.
It’s going to be available on the web which you need to sign up for to use as a beta tester,and it’s going to be available as an application for Smatphones such as iPhone,BlachBerry,Nokia S60…ect
More details on Yahoo!Mobile site.