For Verizon it is a "Personal Message Indicator" which can switched on/off when you call voicemail. I think there should be something like that for Sprint
For VZW the icon is now a pic of a telephone handset (old fashioned) with a (tape) recording indicator next to it. But opening it is nothing like it was on my Bold 9650. It's nothing more than a list of calls w/the person's name, time, etc. Click on the name and you can play it. There doesn't seem to be "Trash" anymore where you can retrieve a file you may have accidentally deleted. Seems you can still save them to your sd card.
The calls are grouped by date (which I don't like) instead of a list.
Meh, may not be worth the extra few dollars anymore. Haven't decided.