Unity3D: Need help w/ my help screen Thread

Hi guys, I'm very new to Unity, had a quick question, hoped you could point me in the direction of a tutorial. I need it so that double tapping the screen (Android) brings up a help screen. I read about splash screens, making them using a textured cube. I'm assuming it's similar? Anyways, there's no overstating how noob I am to all of this, I'd very much appreciate a detailed explanation.

Two Ways:

1. Switch Cameras when the screen is double tapped?
2. Use the build in unity OnGUI() function to create a screen that way

In my personal opinion, I am not too sure, but you should be using the function OnGUI() to create the menu. It is possibly the most efficient way to do this. On the other hand, as I mentioned in step 1, you can switch to a second camera, turn off it's perspective and either create game object buttons or use the OnGUI() script to simulate a menu.

Any further questions, either pm me or email my company at: evilwaters@ymail.com

Thanks man, I hope to get around to trying this out soon... soooo busy right now.