The Nokia 5530 XpressMusic upgrades the firmware to v30.0.009. The Nokia 5530 XpressMusic is a Flash Lite 3.0 enabled device. The Firmware is
available on Nokia Software Updater. Following is the change log from

 NokNok.tv

Universal kinetic scrolling
* Web
o Upgraded to version 7.2.3
o Defaults to full screen
o Kinetic scrolling
* Music
o Cosmetic updates to icons
* New applications
o Ovi Sync
o Shazam
* RAM optimisation
o Comparing after cold starts, our 5530 had 2MB more free RAM with the v30 firmwar