Other than the fact that you no longer take direct control of one character, SOCOM: US Navy SEALs Tactical Strike for the PSP is set to feature Aussie Special Forces in it. The 22nd Special Air Service Regiment (SASR) will be one of the multinational Special Forces teams that players can choose to take into combat.
The SASR are Australia's premier Special Forces units who have fought in almost every conflict since its creation in 1957. The SASR have served in a host of recent high profile conflicts including East Timor, Somalia, Iraq and continue to operate in Afganistan.
Sadly there is no release date for SOCOM: US Navy SEALs Tactical Strike, but we'll leave you with a nifty picture of the virtual SASR in game.