I got a chance to meet up with some of the people from Macromedia Japan at DevCon this week. Among other things, the showed me the on-line Sony Bank which is done completely in Flash.
You can view it here (in Japanese).
This is pretty cool, but then they showed me the version where you can have little pets help you manage your account (i.e. they nag you if you haven’t saved enough money, etc). It is kind of like Hello Kitty meets JP Morgan.
You can view this version of the bank here (in Japanese).