Adobe is hard at work on giving developers the means to create iPhone application using Flash or Flex :
– how to develop iPhone applications using Flash CS5
– using Slider and Flex 4 to create iPhone applications
– Applications for iPhone Developer FAQ
While there are no public beta builds out as far as I know (the first one, Flash CS5 is promised for end 2009), this is exciting news for all of us using Flex or Flash to create applications !