Many recent innovations in the mobile space are led by new entrants such as Apple or Google. However, let's be fair with telcos. They invest significant amounts of money in R&D and have very creative staff. There has been some skepticism in the industry on selected Orange services such as Pikeo, Djinngo (ex Bubbletop) or Soundtribes where Orange was trying to "reinvent the wheel" without partnering with the right Internet players. However, these services have never been really marketed and does not prevent strategic partnerships to be signed. Orange in particular has many Orange Labs worldwide and is driving innovation.
I saw recently some interesting demos of products and services to be launched by Orange: