I agree with Yamivash. First off my kids LOVE Phineas and Ferb. I enjoy it too for that matter and I realize comics arent some super serious sacred affair that must be kept in a gilded cage of serious gold. They can have fun with them. I think its even a good idea to get new young fans hooked on marvel superheroes.
Like the examples Yami gave, boycotting this is like trying to erase Adam Wests Batman or Spider-man and his amazing friends
I cant wait to see this crossover