Intel's betting the farm on Ultrabook PCs with its biggest-budget advertising campaign since 2003. April will see the start of a massive advertising campaign designed to convey the benefits of thin and light notebooks to the masses. Kevin Sellers, Santa Clara's head of advertising was boasting ahead of Tuesday's Intel press conference where we're expecting plenty of juicy revelations about the company's Medfield smartphone platform. We'd say "keep your eyes peeled" for the adverts, but given how deeply ingrained the Intel bunnies are on our subconscious, we'll just wait for the PR onslaught to begin.Intel mounting 'biggest advertising campaign sinc