On my Evo, it sese that this file is currently not supported, when I try to stream videos from my hard drive with the pogoplug, but I can see the thumbnails, any one else with this problem ?

I have an EVO. I have transcoded to MP4 and sometimes the file will start ok, but will then give a file currently not supported error or an "Error playing video. Error code-100".

When I'm using wifi my pogo plug streaming works fine but when I try to use it with my 4g on which has a faster connection it won't work. Does the android app support 4g?

I have an older Droid Incredible. try moboplayer. it's free and supports AVI and MP4. i bought vPlayer but prefer moboplayer.

for best practice, make sure your files are at a resolution your video viewing target can handle. if it has to scale or convert, it will tax the cpu on your phone. also, smaller the file, the better as eventually the entire file will get transferred to the memory of your device. streaming only limits the amount of data being sent so it can be viewable.

as for the question of speed over 4G, it;s not your phone's speed but your home internet providers upload speed which needs to be observed. i doesn;t take much bandwidth to stream effectively but you do need atleast a couple of variables that could mess you up-from a stable connection from your phone to your provider to whether your internet provider throttles your upload speeds and general internet congestion. you don;t see these variables on a local connection.