Twitter, Phweet & American Airlines
Earlier this week Andy Abramson discovered that he could make a Phweet call via Twitter, thereby circumventing the VoIP blocking provisions used by American Airlines Aircell operated GoGo in-flight wifi service.
This is definitely interesting as Aircell somehow manages to allow Skype IM, but stop Skype voice calls. This implies that the Tring Me Flash VoIP widget is doing something at least a little unusual.