For Android tablets, Splashtop is our favorite way to do this.

you could use pinch-to-zoom gestures to navigate the interface and use the on-screen keyboard to input text.

Splashtop also allows you to try it out for five minutes before paying.

This is a handy feature to have, since compatibility can be an issue.

In my tests, nearly every app required some troubleshooting before I could get it to work.

This means that theres usually a bit of lag.

You could also run into connectivity problems if you stray too far from your router.

Splashtop also requires you to create and login to an account to use it.

It also supports touch input, though it lacks some of Splashtops nicer navigation gestures.

Wi-Fi connection is still available if you decide you want a bit more portability.

The setup process is also a bit simpler.

As long as the server is installed on your main machine, iDisplay can auto-detect your gear.

It works over wired or wireless connections and supports similar pinch-to-zoom gestures as Splashtop.

However, in addition to being more expensive, it also has some pretty major compatibility issues.

If you open unit Manager and see multiple entries under Display, then AirDisplay wont work for you.