Yahoo! has just updated their Yahoo! Mail for Android App, offering multiple new ways to customize notifications, amongst other modifications.
Users can now option notifications with sound, vibrate or silent, and can add a status bar. Also what's new is the "select all" checkbox, similar to the former "edit” option, for users to select and manage multiple emails at once.
It has been reported recently that both Hotmail and Gmail are better at blocking spam than Yahoo!, though interestingly, Yahoo! ranked second in number of users behind Hotmail in a 2011 Comscore report. The stats put Hotmail at 350 million users, Yahoo at 310 and Gmail at 260. Apparently, someone out there is using Yahoo! Mail.