I thought it was pretty laggy after playing Marvel vs Capcom 3 with a friend from my city, when we had no lag using our united states accounts... Could this be just because the PSN servers in here are new or something?
Well since theres no forums in the brazillian site yet, i guess i'll just post it here if thats alright.
The Brazilian servers undoubtedly have far less network bandwidth than the US servers. Network bandwidth is very inexpensive in the United States by international standards, due to large amounts of speculative investment in network infrastructure by telecommunications companies several years ago. Network bandwidth costs far more in Brazil than it does here, and the Playstation market is much smaller. Sony's Latin American network unit would have to keep network capacity to the bare minimum, which means that you are more likely to have latency issues when playing online games than you would using the US Playstation Network.