My favorite post-dinner place is Capogiro. I've hit up places in NYC and Cali and nothing seems to capture such a powerful flavor except this little gem in Center City. To top it off, they also serve the wonderful La Colombe coffee.
They use seasonal fruits for their Gelato (except for the Lemon, which they always have). In addition, they play with exotic fruits and blends of fruits and herbs, believe it or not. I would definately take advantage of these rare finds. Get the pineapple/herb blend, if availible.
If you have a penchant for chocolate and/or coffee, get the Cappochino gelato, which is also made from La Colombe coffee. They always have some sort of chocolate-flavored gelato.
The only downside is the price: A coffee and two scoops of gelato will set you back $9.
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