Creating game trailers or demos for Android?

I tryed using a recording software installed on my android device, but the software was a little cpu intensive and the framerate of the game dropped a lot and i was not really satisfied.
After that attempt i used fraps and was really happy with the results.
Fraps allows you to record the active game window (without recording the window menus, the desktop and any other stuff you don't need). Just run your project from fusion and then press F9 to start recording. You can also choose to hide or show the cursor on your recordings.
The screen resolution of the video is the resolution of the game window, so it will match your project resolution.

If you are interested in a opensource video editing software, blender might be your answer. It's a 3d software that also has video editing capabilities.
Never tried it myself, but after a quick look i find it very interesting.
This youtube video probably will help you to get the feeling of how it works.

Please login to see this link.

Nice find Mpnetbox i didnt know Blender can edit videos. How does it rate as a video editor?

It look powerfull, I have to watch more video about it, I don't see if you can insert a video inside another video like I did on iMovie.

Honestly, a cheap Windows tablet is perfect for this (with fraps), as you don't end up with the mouse cursor on the screen. I picked up an awesome generic quad core atom on Amazon for $100. More than enough to run my games and record. An alternative solution is to switch your windows cursor icon to a hand/touch icon. Just that little bit makes it look a lot more professional. It's also a dream for testing mobile apps without actually transferring a completed project to your mobile device.

It is possible to run the game in its native resolution in Windows and record that with fraps, which can hide the mouse cursor, etc.

I use Adobe Premiere for editing. I have also used After Effects.

All three are indispensable tools to me.

if you have a phone with android kitkat or above you can use adbtools to capture HD video directly from the phone.. screen recorders are laggy and lossy.

Thanks for the heads up Dave i wasnt aware of that! I attempted to screen record an app of mine using various screen recording programs and all resulted in terrible FPS. My PC is a few years old but should be more then up to the task spec wise(i7 2600, 8GB ram, AMD6970 2GB GPU) but still results in very poor recordings. Recording straight from the device sounds like the best way to avoid all the overhead. I'm fairly certain I tried FRAPS , but I'll have to give it another go and play around with the settings.