Sep 30, 2008: Deadline for submission of open-competition invited talk proposals
Oct 15, 2008: Deadline for APR meetings committee to report their invited sessions to
                        Program chairs.
Nov 1, 2008: Submission of invited talk abstract starts
Dec 15, 2008: Deadline of submission of invited talk abstracts
Dec 16, 2008: Submission of topic contributed/contributed talk/poster abstract starts
Feb. 1, 2009: Deadline of submission of topic contributed/contributed talk/poster
                       abstracts
Feb. 1, 2009: Early registration starts
Mar 15, 2009: Hotel booking with conference rate starts
Apr 30, 2009: Early registration ends
May 30, 2009: Deadline for booking hotels with conference rate