Cupcakes have come on a long way since Carrie Bradshaw from Sex and the City turned them into as much as a fashion statement as her tutu skirts & designer bags. This week sees the fourth annual National Cupcake Week. Solange Berchemin takes a look at these bite sized goodies and also asks Sarah Trivuncic, author of Sweet Bitesize Bakes, better known as Maison Cupcake, for her thoughts on what makes them so popular.