The Jump potion doesn't bother me. When a similar system was introduced in WoW it didn't cause that many problems for players. More to the point people interested in playing their class correctly will pick the basics up quite quickly and people who aren't won't wether they use the Jump potion or level from scratch.

As for most of the rest, it was rather vague which is intentional. They don't want to get too specific while things are still in development and prone to change and they also don't want to give away info that they plan to release at the other fanfests.

As for the PS3 limitation thing, people have fixated on that far too much. Every time they have discussed things such as inventory limitations and customisation options it has had to do with server issues, not the PS3. People just seem to instantly assume the PS3 is the issue rather than something on SE's end creating limitations. There are things the PS3 would create limitations with but not every issue or limit the game has was because of that.