This must be Flex week on TechCrunch. It started earlier this week with TringMe, who have developed a Flash based click to call widget. They quickly realized that a lot of companies are building out Flash based IP telephony software, and did an article about Ribbit and its upcoming platform. (Om Malik has a list of other companies using Flash for VoIP).
On Monday they posted an article about Empressr, a Flex based PowerPoint competitor (did you have them in Flex Office Bingo?)
Finally, there was another post yesterday about EyeJot, a video messaging service written in Flex. Ryan Stewart has more information about EyeJot as well.