Bada 2.0 won't just be riding the Wave 3, Wave M and Wave Y, but according to a tweet from Samsung, it'll be available on all older Wave models as well. The company did warn that the OS could run "differently" between devices based on specifications like CPU and memory size, which may affect lower end models like the Wave 525 and Wave 533. However, if you are the proud owner of any of the fancier Wave phones like the S8500, expect the full OS makeover. The upgrade is due to splash across Europe some time in the fourth quarter, rolling out worldwide soon thereafter.