Will your PS3 user name, trophies, and friends list transfer to the PS4?

The vita transfers trophies just fine.

And one of the PS4 pics showed a guy being a level 17, theres no way he could have reached that level with the few amount of PS4 games announced so yes they will most likely transfer, since they did with the Vita.

We know almost nothing about the new PS4. Sony won't say anything until June 10th at E3.

Most likely nothing will transfer over: not all of your friends will get the PS4 so they will not transfer, and Sony said that PS3 games will not be compatible with the new system, so trophies will not transfer. Sony has not said anything else about PS3 and PS4 compatibility or interaction.

You may be able to keep your username, that's it.

Sony made a biggish deal a little while ago about changing from PSN to SEN (Sony Entertainment Network). That no-one calls it SEN is irrelevant, what is relevant is that the ID you made is accessible all over the place, PS3, PSP, PS Vita, PC, TVs, etc.

You wouldn't go through that effort to just flip a switch and start again.

Add into that, your PS3 id is not only important to you, it's important to them in terms of market research. They can use it to see which users have made the switch, are they still playing the same types of games, etc, etc, etc.

I know that many people will disagree with me on this but I do think your Gamer-score/Level type things will transfer over. Remember, we cant play ps3 disc's, but PS1, PS2, and PS3 games will be downloadable so I believe so some things will.

Alberto_Anahilation Alberto_Kills_You Alberto_Eats_Apples Alberto_As_Good Elite_Alberto XxAlbertoBoyxX XxAlbertoKillsxX in basic words some random yet cool names revolving around your call. upload me on PSN, AaronKings183.

Its unlikely, because its a new system, although its possible.