Here were some tweets with reaction as the conference took place:
alexevansuk (London, U.K.) obama takes stage at #g20 press conf: some journos started to clap. couldn't help themselves :-) mathieuvonrohr (Hamburg, Germany) #G20 press conference: Obama is sneezing. He is human! preperat (Melbourne, Australia) I aint an american .. nor do I live there .. but [expletive] I'm glad you guys have someone like Obama in charge now !! #g20 lcquinn (Skokie, Ill.) Obama speach is halting and filled with platitudes. Why do people think he is wonderful. He embarasses me as an American. #G20 tvnewswatch (London, U.K.) not everything was solved, Obama says and welcomes another meeting in late 2009 #G20 RobertsDan (London, U.K.) #G20 #Obama. "I think we did OK. I came here to listen". He sounds like he made a few concessions. xtranger (London, U.K.) Obama keeps thanking 'Brown and his team' ... is this him spreading his so-called 'stardust'? #G20
At least one twitterer was actually at the press conference and provided a live look into the feel of the event and what Obama was saying.
ch3ryl #G20voice obama press conf is 110% packed at #G20. way more security and govt peeps than Gordon Brown, yo. Obama = rollin' VIP ch3ryl #G20 #G20voice Obama press conf -- the air is thick in the 800 person briefing room with anticipation. Obama = global rock star!!! ch3ryl #G20 #G20voice Obama press conf: the whole world has been touched by this unprecedented financial crisis ch3ryl #G20 #G20voice Obama press conf: to prevent future crises we've created new transparency.