I use it to upload photos to facebook. It will not work with .MTS files in the selective mode where you protect the files you want to upload. That is because Panasonic uses a proprietary way of protecting .mts files instead of just protecting them. It will work with mjpeg files though.
I have a 4G Sprint EVO phone that routinely gets 1-2 mb/sec upstream in 4G areas. Not enough to stream the videos. However, it is nice to be able to share the files in near real-time. It works perfectly for pictures though. That is why I bought it.