[Taylor]

So if you ordered a cone, would the deliveryman scoop it at your doorstep, then add nuts, sprinkles, and a cherry?
I see this idea working well with prepackaged confections (rocket pops, dilly bars, fudgesicles (sp?), etc) but not soft-serve items.
I agree with the tipping thing - single servings of ice cream wouldn't be a large enough amount of money to justify significant tipping by the customer (or even delivery if there's only one residence).
If pizza and ice cream were delivered simultaneously, the customer would either eat hot pizza then melted ice cream, or cold ice cream and room-temperature pizza.

Pizza only.