From the list at m-trends.org:
# Flat fees will become more affordable bit by bit.
# Thus, more user-generated content will become available to the phone; opening the way for mobile users to start using new web/mobile 2.0 services on their phones, such as podcasting, RSS feeds, more user-generated content to upload and use.
# Big Media Youth Networks going mobile – MySpace, YouTube, MTV and many more players will resolutely go mobile; allowing users to upload pictures, videos and create/consumer content straight from their mobile phones. And to share with friends (including mobile forwarding functionality).
# Mobile search – the big players will start positioning seriously in the mobile market (watch out for deals with carriers/operators and device manufacturers)