New York City Mayor Michael Bloomberg tossing his hat into the presidential race?

Hot news today is " Mayor Bloomberg leave the GOP" - So is he tossing his hat into the presidential race?

Here is his official release from his office as New York City Mayor Michael Bloomberg on his party affiliation: http://www.nyc.gov/portal/site/nycgov/menuitem.c0935b9a57bb4ef3daf2f1c701c789a0/index.jsp?pageID=mayor_press_release&catID=1194&doc_name=http%3A%2F%2Fwww.nyc.gov%2Fhtml%2Fom%2Fhtml%2F2007a%2Fpr205-07.html&cc=unused1978&rc=1194&ndi=1

and here is link to his official biography:
http://www.nyc.gov/portal/site/nycgov/menuitem.e985cf5219821bc3f7393cd401c789a0/

.