National Day of Prayer?

In 1952, President Truman established one day a year to be a 'National Day of Prayer'.

In 1988, President Reagan designated the first Thursday in May of each year to be the 'National Day of Prayer'.

In June, 2007, Presidential candidate Obama declared 'the United States is no longer a Christian nation'.

In September, 2009, a 'National Day of Prayer' for the Muslim religion was held beside the White House.

In 2010, President Obama canceled the 'National Day of Prayer' under the guise of 'not wanting to offender anyone', never mind he offended a nation where Christians compose 80% of the population.

Is this part of Obama's fundamental change for America?