You can edit video for delivery to mobile phones, portable media players, and other portable devices. Selecting a project preset that matches the requirements of the target device is the easiest way to get started. When you are done editing your movie, use Adobe Media Encoder to encode it with the audio and video characteristics correct for the target devices.
From the Welcome screen, click New Project.
Select File > New >Project.
To edit a movie aimed exclusively at devices supporting 3GP2 video at frame sizes of 176 X 144 or 88 X 72, select the CIF, QCIF, QQCIF preset.
To edit a movie for distribution on the web or on mobile devices that can display 4:3 video at frame sizes of 320 X 240 or 128 X 96, select the iPod, QVGA, Sub-QCIF preset.