Because it is tied to the Fed Funds Rate, Prime Rate also fell by 0.500% yesterday. Holders of home equity lines of credit and credit card debt benefited from the change and will see lower interest costs in next month's statements.
In the statement above -- as explained by The Wall Street Journal -- the Fed expresses concern about the housing and jobs markets, while noting that inflation is less of a worry. This leaves the possibility of future Fed Funds Rate cuts open.
Source
Parsing the Fed Statement
The Wall Street Journal Online
January 30, 2008
http://online.wsj.com/public/resources/documents/info-fedparse0801b.html