IGN JAPAN just uploaded a 2 hour Skies of Arcadia podcast with original director Shuntaro Tanaka and producer Rieko Kodama!
Many first-time known facts and lots of documents from when the game was developed were revealed, so I highly recommend fans to have a look!
https://www.youtube.com/watch?v=eayQMi- ... e=youtu.be
Sadly, it's all in Japanese...anyone willing to do a fan translation by any chance?