Last Updated Oct 29, 2009 11:48 AM EDT
Using the app is a snap: Just set your BlackBerry's e-mail alerts to Silent, then configure MailTones to use the sounds you want -- including a couple dozen included "tones" or any MP3s you happen to have loaded.
You can apply these sounds to individual contacts, groups of contacts, and even subjects: The app plays an alert when the subject line contains one or more selected keywords.
I haven't tried MailTones for BlackBerry, but the iPhone version works very nicely (though it's not nearly as easy to set up).
Both versions cost $2.99, a very reasonable price for an app that promises to give BlackBerry users some relief from constant, distracting, and often downright rude e-mail checking.