The idium is referring to things happening more quickly or directly - no middle man or travelling required so it is simple and easy.
While i can see this is the meaning you are trying to use, for your example "Watch movies right in your tablet" i don't think it works as you are not watching movies IN your tablet - technically the movie may be "inside" the computer, but you are not WATCHING it inside.
This raises a further question regarding whether you want to emphasise the watching or the receiving. What you are actually talking about is the fact that you RECEIVE the movie directly (with no need to leave the house, as per your original indium), with the "watching" part being irrelevant.
For this reason, i would use "receive movies directly to your tablet" but I assume your intent is to be catchy and aim for marketing as well, so this may need to be reworked, but for the purposes of correct usage of words i believe this phrasing is more accurate.
Good response. Tablets can be both a device to receive as well as to view, so a movie could be "delivered to" or "viewed on" the tablet, depending in whether the emphasis is on the watching or the receiving.