Free app that simplifies the process of accessing your computer using iTeleport
iTeleport Connect is a free application for Windows and Mac that simplifies the process of accessing your computer using iTeleport from anywhere (using 3G, EDGE, or WiFi).
iTeleport does two things: first, it enables Screen Sharing / Remote Management (aka Apple Remote Desktop on Tiger) if it isn't already running, and sets it to allow VNC connections with a VNC password; next, it connects to the Google Talk network to allow iTeleport to create a network connection to your Mac. Without iTeleport Connect, you would have to configure a host of complicated settings yourself — so it's a huge improvement over other apps.