iFoneTec has made a new Ringtone concept, VideosTone an application that would let any video play as part of a ringtone. This application is going to allows us to assign a video to our contacts, when the contact calls the video will play

The developer said that most of the 1.1* firmwares are supported 2.0 is in development

How to put your customize video:
use ssh ftp client to upload your video file to /var/mobile/Media/VideoTone/Video/ directory.And VideosTone will recognition it.
This application is Free, but the advance features are only activated when you paid for them, to install this application you need to add the iFonTec source