While we’re on the topic of sweet things to come, let’s look ahead to spring 2011, when Marisa Lown will roll out her mobile branch of the Radical Cupcake.

The four-wheeled version of the dessert biz was originally slated for this summer, but, bummer, pastry whiz Lown found herself swamped with catering gigs. She’s pushed back the launch date to April or May. In the meantime, she’ll keep busy souping up the 1953 Flying Cloud airstream that will act as de facto hub of her three and-half -year old bakeshop. Not only will the trailer travel the city to "pass around sweet love to the masses," says Lown, it will be a boon for onsite baking and vending.

The name Radical Cupcake is likely to change (one possibility: Sweet Stop Bakeshop ), but what won’t is the credo that’s garnered the hyperlocal Cupcake cred: the goods—organic tarts, muffins, pies, cupcakes, more touched-up desserts—are baked with allergies in mind. Lown estimates that on a daily basis at least half of her yummies will accommodate special dietary requests, vegan, dairy, sugar, gluten, and otherwise.

As for that airstream, Lown is tricking it out with midcentury gadgets and a decor that will "evoke the time period" from which it originates. Sweet.