Whenever I start the game up, the Extras menu has the "new" icon over it (what is "new" is a mystery to me though). Also, when I start the game the tutorial tells me how to play it again. My settings are not lost, though; I still have all my customized balls, purchased abilities, and my Feint account is still active/attached.
Phone: Samsung Galaxy S I9000M
ROM: Galnet MIUI Twooey (based on Gingerbread 2.3.5)