Looks like embedding 3GP video from the WordPress Blackberry application (or any other source) is fairly trivial once you have completed a few configuration steps. One option is to modify the supported MIME types right in the code. Rather than change code I prefer to stay within the boundaries of the administration panels to ensure the the system can ever-green with package and plugin updates. For myself, running multi-site and supporting a few other users unofficially, this is especially important _ I do not want to spend time upgrading/migrating/configuring if I don’t have to. I have learned this from my experiences easily supporting Debian-based infrastructure through upgrades for decades now.
I found these instructions useful after a bit of googling; Since I didn’t hit the information I wanted on my first or second search, I thought it best to post my learnings.
1) Download the MIME type configuration plugin
2) Add a mime type for 3GP, or any other files that you want to upload that current result in the message “File type does not meet security guidelines.”
Below is a screenshot from the PJW mime configuration plug-in I used to add .3GP.
i see that you have the dop player in the tags for this post, but don’t mention it at all in the post. I came to the same conclusion you did when trying to get video from my blackberry to embed on my wordpress blog through the mobile app. I can’t seem to get the dop player to actually play the video though. it will upload it and properly code the player in but it just won’t play. Have you had any success with getting the mobile videos to play?