A lot of new mobile applications are being launched target at the roughly ~ 1 billion Java capable mobile phone in the world. One RSS and blogs that are now very common place on the “non-mobile” web are now moving to the mobile phones. There have been some attempts at this earlier, and Sony Ericsson even bundles good mobile blog application and RSS-application with some of their phones today.
One of the companies targeting this is Mobispine, that provides a high-quality Java based mobile client for image and video blogging, as well as consuming your favourite RSS-feeds, and it works with most Java capable phones on the market.
Google and Yahoo are also starting to target this area, with Microsoft not too far behind, and the main driver behind many of these applications is to capture an quickly emerging mobile ad market.