Hi Aaron--
Capogiro was written up in the June/July issue of Saveur, which I happened to be reading on a flight to Philadelphia in early June. Unfortunately, the article (for the "Source" feature, I think) focused on their mail-order business and did not provide an address in Philadelphia or even confirm that they had a retail presence in that city. To my great delight, I stumbled upon their storefront on my way to dinner at the Samson Street Oyster House and decided to return after dinner.
Their gelato was mind-blowingly good. It was the best I have ever had in this country and on a par with the legendary San Crispino in Rome, which I had a chance to try last fall. When possible, they use locally harvested produce of the highest quality; so I had a particularly wonderful strawberries and cream made from fresh local berries in early June. They do also use more exotic produce (unless there is some kind of subtropical microclimate on the Schuykill that I don't know about). This included an excellent Champagne Mango.
I can't vouch for how well it packs up and travels, and $10 a pint does seem superbly expensive, but these people seem to know what they are doing.
Capogiro Gelato Artisans
119 S. 13th St.
Philadelphia, PA 19107
http://capogirogelato.com/