The App Store is home to numerous apps that let you connect to a desktop PC from afar. Granted, navigating Windows on a screen as comparatively tiny as the iPhone's is not a lot of fun, but it works better than you'd expect.
Indeed, I've used remote-access (or "RA") software many times for simple tasks like e-mailing a file, peeking at a document, and even shutting down the PC (when I'm too lazy to walk down a flight of stairs).
Thankfully, I've found a handful of free RA apps. (There are others, but I'm focusing on the three I know best.)
First up: RDM+ lite, a new, ad-supported version of the $9.99 full version. (For the same price you can buy the iPad version.) RDM+ is noteworthy for supporting both Mac and Windows systems--you just need to download the proper desktop client.
Next, there's JumiMouse, which in its early days merely , but has evolved into a more complete remote-access app. The free version is a bit limited in that you can't interact with your PC when you zoom in at all (which is quite necessary for most functions). Thankfully, JumiMouse Plus costs just $1.99. Note that this one's Windows-only.
Finally, my favorite freebie: TeamViewer, a full-featured, Mac/Windows-compatible remote-access app. It has no ads and no limitations to speak of. Plus, it did a better job on my iPad than either of the other two apps--though pixel doubling is just no substitute for an HD version. You can read my full coverage of TeamViewer over at Business Hacks.
Well, those are my three freebies. Have you found another free remote-access app you like better? Or at least one that doesn't cost 30 bucks?