Also, the "Passport" service. Where you can use your existing tariff whilst roaming abroad. Most european countries support this and also NZ, Aus and China, with US to follow next year. Therefore saving you a fortune if you regularly go abroad.
Also launching "Super 3G" early next year. Basically faster 3G service. Currently trialling in London to be rolled out to rest of UK later in 2006. O2 will be trialling their service early next year in the Isle Of Man.
Finally, like Orange, Vodafone will have a Line 2 service where you can have a second number on one sim card - idel for business customers who want their private number linked to the same phone.
Plus a review of their tariffs in the Spring, but I've said too much.