in time the ps3 will drop in price and become more attractive to consumers. by the time that comes they will have time to have worked with the ps3 hardware and therefore pull out some pretty impressive games. not to mention already have a decent library of games to work with.
so in 6 months it may get better, but in a year it will be a much more popular console than some may think.
the wii on the other hand is very much limited in its capabilities. they will very much have to focus on gameplay for their audience. in a year or two the wii is going to look real bad. but that all depends on what your looking for when playing games.