Social media app Snapchat could soon be publicly owned, with the initial public offering set to value the company at £20.5 billion. It comes after its owner Snap Inc. reportedly settled on Morgan Stanley and Goldman Sachs to underwrite the IPO, which is being referred to as a 'mega-unicorn', a term reserved for any companies valued at over $10 billion. Share Radio's Joe Aldridge spoke to Tech Consultant Chris Green about the company's plan.