The official mobile DivX player, DivX Mobile, has received a major update which adds support for DivX's video on demand service.
DivX Inc. (the company) makes DivX (the video codec) which allows for high-quality video compression with relatively low file sizes. DivX Inc. have launched a VOD service that allows participants to download movies in DivX format from several partner content suppliers.
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The mobile version of the client software - which until now only offered playback of locally-stored content - runs on Symbian S60 and UIQ devices. Version v.90 also includes numerous bug fixes.
The app is available free (alongside a windows program that will let you convert other formats to DivX) although you will need to register with the company to be able to download it.