I would love for achievments/trophies to transfer to the next gen, and for Nintendo to finally add them (which I suspect they will do when they launch their online support).
Also, while I love achievments I understand that most think they are pointless. Developers are already realizing that trophies/achievs can sell even horrible games (Avatar, Hannah Montanna) so I am surprised that achievements/trophies are not evolving and becoming more relevant. Maybe for every 10000 gamerscore you get 400 microsoft points ... this would encourage people to play a wider variety of games (possibly even enjoying and buying them in the process) while creating loyalty to the brand since you are developing your profile and getting a reward which you will just reinvest into Xbox live anyways.
Even if they just added more semi useful stuff like they did with Avatar awards; it would be a great for the players and the developers themselves who would get more sales.
Lastly, to all those who think achievements are pointless, Sony must have felt that achievements made enough of an impact as a feature that they chose to develop trophies. They realized that people enjoy them, and they decided to invest in their own system.
