I hope they only allow limited custom UI to skins and widget set ups. And not dsp meters or anything like that. That will serve to alienate ps3 users when we get to join or switch over. I rather not see high end LS's or companies (yes player companies are still in the works) to require addon like in most mmo. I found out the hard way that not all curse.com addon are safe. I found a few that ended up crashing my computer. (i found out it was the addon by deleting it and never crashed after.)

Thats my 2 cents.