I was walking down the street in Tech Square today and what do I see but a heretofore unknown food truck. I love food trucks. They usually have very good food, are pretty cheap, they offer the fun of discovery, and in many cases you can talk with the owner. The kind lady who masterminds the Yum Yum cupcake truck told me that she has had a bakery for six years, started a cart last year, and opened up the truck this year. But let's get down to business---the cupcake. I ordered a strawberry. It was light in texture, very moist and cakey. The large dollop of strawberry icing was rich but not overly so. I know that I've railed against cupcakes before, but here's why I like this one: it's rich but not overly sweet; and I simply think the truck adds an element of fun. In fact, I think that cupcake trucks fit nicely with my mom's tradition of feeding the neighborhood kids with her cookies and cupcakes. This is a nice addition to the cityscape.