The yahoo! App on android is simply an embedded browser widget and only provides one actual feature. You can share the current URL on Facebook. Confounding how they could release an app that is both pointless for the user but beneficial to a competitior.
I'm surprised they only discontinued the blackberry version.
Or the new WebKit browser in the recent versions of Blackberry OS mean that it's not as required as it used to be.
The BlackBerry the app was written for _is_ a dying platform: BlackBerry 10 has zero compatibility with the original BlackBerry OS's apps.