I am not sure when these changes might be implemented, but there seems to be a general toughening up of regulations. The biggest change to normal tourism would be the reduction of a standard visa from six to three months.

The BBC report can be found Here

TimW

At the moment this is only a consultation paper that can be read in full on http://www.ind.homeoffice.gov.uk/6353/6356/17715/visitorvisaconsultation.pdf