How to Remote Control Google Doc Presentation? I want to remote control Google Doc Presentations. Is there an app for this?

Bonus point if it can connect via Bluetooth to my Linux-based PC.
You could simply use a bluetooth/wifi mouse app like PRemoteDroid. There are a bunch of others, and generally speaking they just allow your device to be used as a mouse/keyboard input. If you can pair with your PC it should work, although I've never tried it myself (I do use PRemoteDroid to pair with and remotely control my Xoom, though; works great).

Another option would be some kind of VNC or remote desktop client, but that's not as lightweight and some of them don't support Linux (Splashtop, for example, doesn't have a Linux server, IIRC).