Teamviewer today released their free-for-personal-use
Teamviewer App for Android (Beta; click "Mobile" to download).
Install it on your Android phone, and the
appropriate server software on your PC or Mac (or anybody else's PC or Mac; click "Windows", "Mac", or "Linux" to download), start up both, exchange ID and password, and you can remotely operate that PC or Mac, from your Android phone.
Ideal for 24/7 access to (the power and the storage of) your own computer at home, wherever you are (not necessarily via Wi-Fi!), without having to schlep around a laptop or a tablet. Or to help someone else with computer problems: you can instantly take over their desktop, while they can see what is happening on their own screen.
Of course it isn't very fast, depending on your connections. And the screen real estate on a phone sucks. So you won't suddenly be doing any heavy desktop work on your phone. But it's an ideal backstop, imo.
Try it out, and let the forum members know how (if) you like it, and if it's at all useful to you.