Warning: session_start(): open(/var/lib/php5/sess_07elmi13gmar8j5sqghupivu14, O_RDWR) failed: No space left on device (28) in /var/www/clicktotweet.com/www/index.php on line 5 I'm going to the official #apsmarch Tweetup on Sunday, March 2 http://go.aps.org/1c4FAtn See you there!