Have to keep the Blu-Ray, people forget how the PS3 may have won the format battle for BR, opening a long revenue stream for Sony, any money lost on the PS3 hardware will come back to them from the BR.
I would have advertised more heavily, Id keep the 'Saliva' add format, perhaps tweak it a little, change songs from time to time, and showcase about 3 games per quarter HARD.
Id advertise the PSN games in their own commercial during times where 'casuals' are watching (i.e., not UFC). Gets kinds to want elephunk and pain, get stoners watching Adult Swim to want Flow and Pain :D
I would have made the PS3 logo bigger, on commercials for multi-plats, its lost...though very recently I have seen it moved into the middle, moving XBOX to the right...this could be paid for? I dunno...but I notice it much more now.
Id be saving up money to buy two HUGE exclusives in the US (FFXII is not needed here,it being exclusive in Japan is a win). Id lock up "UFC"...
The only hardware Id change, is more RAM, I think the Cell is (more and more obviously) beginning to show its potential, and even KZ2 is not using all the processors...its a powerful shiny box.