Games going multiplatform will hurt the company which produces the more expensive console. Sony, I am looking at you. Why would you want to spend money buying the more expensive console if it is available on a cheaper one? If you want to make us pay more for PS3 you better get your exclusives right.

Piracy will be the loophole for profit to leak out for the compromised console as well. Pirated 360 games anyone? It will probably benefit the developers more since their market will be larger but piracy will make them reconsider as well. It depends on how much piracy will affect the extra profit gained from making games on other platforms, as well as how costly it will be to port.

do quote the source where is says the PS3's software security has been unlocked. The results of my searches from google are sketchy at best. Just a couple of videos on youtube where it could easily be faked.