Never heard of Digital City before. I tried the link, and out of the 15, eight are out for being in Philly itself, two more for being in Jersey, and one for being in Rehoboth Beach, Delaware (Sir Guy's is a fine restaurant and pub, I've eaten there myself and probably will again this summer, but how it turned up on a search of Philadelphia restaurants I'll never know.)
Of the four remaining, Victory Brewing Company has a jerk chicken grinder, but not an entree. The Drafting Room doesn't appear to have it on its current menu. Bahama Breeze has some potential: they have jerk chicken sandwiches, salmon and shrimp, and "Jamaican chicken" (whatever the difference may be there), though they are a chain and their menu is sans pricing. The Horizons Cafe... well, remind me to remember just how far Willow Grove is.