T-Mobile Bobsled for Android, iOS and PCs/Macs Lets You Make Facebook Voice Calls & Leave Messages

T-Mobile launched a service this week that lets Facebook users make voice calls to other Facebook users or conventional telephones. Calls from Facebook to other users or telephones in the U.S., Canada or Puerto Rico are free. Voice messages can be left as Facebook status updates on a friend’s page. You can see what this status update looks like in the screenshot to the left. I left the voice message using the Bobsled app on an iPad.