My philosophy is that if you dont even know what a Beta is dont participate... its not a ticket to play the final game for free. You are part of a test on a wide scale to test different hardware, network and gameplay issues/balancing. If you guys want to on the Battlefield Blog theres a list of TONS of stuff they fixed or changed from the PS3 Beta and it will be the same for the PC version.
They already stated that the friends list/server browser ect is an old build and that the final GUI version is nearly optimized, they just need beta INPUT, not complaints.
Basically, I dont want to hear eGO members complaining and throwing fits on these forums or others. Just be thankful you get to help shape the game before its final release.