Dog lovers among NFL fans have probably become Philadelphia Eagle haters with the news of the Eagles' signing of convicted dog-fighter Mike Vick. But from my experience growing up in the Philly area, I suspect most Eagle fans would happily shoot their own dog if Vick turns out to be a good player for them.
That is the primary reason Vick-to-Philly is a good move. Playing Vick on a part-time basis should actually be good for both the Eagles and Vick, because it forces opposing defenses to prepare for Vick in addition to the rest of the Eagles' offense. Frankly, I don't envy opposing defensive coordinators trying to prepare for the Eagles this year.
Having watched Vick for many years in Atlanta, I can tell the Philly fans: Vick can make your day or break your heart with his performances. However, if the Eagles play him on a limited basis, he should be much more effective. In addition, the rest of the offense should benefit from his presence, especially Donovan McNabb. Just don't get the idea that Vick can replace McNabb, because it ain't happening.
As for Vick himself, landing anywhere would have been good, but landing in Philadelphia has the most upside. Philly fans would love a Nazi-sympathizing mass murderer if he could play a great game of football. If Vick brings them a Super Bowl win, the city of Philadelphia might legalize dogfighting in his honor. You could say the Philly fans are just that rabid.