According to Howard Eskin on 610 WIP out of Philadelphia, and their official website, the Eagles have released running back/fullback Tony Hunt in order to make room for the signing of a linebacker you've never heard of. He also reported that the Eagles did not land Tony Gonzalez from the Chiefs but added an Eskinism, noting the Eagles pushed the hardest of any teams in the hunt for the stud tight end.
Hunt was a bit of a disappointment after being a fairly-touted running back out of Penn State. He was kind of forced into a roll as a fullback and never seemed to make an adjustment to effectively pick up blocking schemes. Hunt also never really lived up to Eagles fans hopes of him being that short-yardage back the Birds have been searching for since forever.
The linebacker the Eagles added is Tracy White, who was released by the Packers a week ago. The Eagles seem to have one of the better young linebacking corps, so White's special teams skills likely played a role in the signing.
What the Eagles are going to do at fullback behind Dan Klecko remains to be seen.