i see on the IGN release list that both espn major league soccer and ISS Evolution are going to be released in the US. I know they're based on the same engine and that one has an mls license but other than that, what's the difference? why are there going to be two releases of the same game?

checkout:

http://www.sports-gaming.com/soccer/espn_mls_gamenight/preview.shtml

IGN also have a preview, but they prefer Fifa to ISS, so they make it sound like a second rate game.

It appears that they are the same game, but I'm not sure if ISS Pro Evolution will be sold in North America - it's listed at EBWORLD and AMAZON.COM, but the release date has been pushed back several times now, it was to come out last Friday but it has been delayed again.