I don't believe either WDEL or WILM have decent signals into Philly (seems around the airport is where they become unlistenable day time, so night time is a total no go). Probably for the total news junkie who maybe used to live in Delaware, they'd could go on line to either station's listen now online service, or for some very limited Delaware coverage 90.9 WHYY-FM or Channel 12 offer some Delaware political coverage.
In Julius' defense, in the past there have been some discussions about Wilmington's WJBR and WSTW on this Philly board, but both Wilmington FM's have city grade signals into center city Philly. Both FM's show very small ratings on Philly's PPM's where WDEL and WILM aren't even listed.
Now that Christine O'Donnell is out of the picture, for now, those outside of Delaware won't really have any interest in Delaware news again, until VP Biden says something "colorful" again.