For iphone owners that are on carriers which charge for tethering (read: most of, if not all of the U.S.) you may have been quick enough to buy QuasiDisk yesterday from the app store. Achieving tethering functionality with QuasiDisk isn't exactly strait-forward and this guide posted to youtube left a few area's unclear. I think it's more of a proof-of-concept video than an actual tutorial. The uploader spent a lot of time showing that the IP address on the phone was the same as the machine he was tethering to. I appreciate this, but 75 percent of the video is IP address checking and then kind of just breezing through the details of how to get this app to function. Hopefully this guide will help clear up any details. Thanks to forum members OneMike and abUser Name from this thread. This tutorial would be a bit more convoluted without your tips and help. First and formost, this app will not allow you to tether an ipad to your iphone. This is by far the most common question I've seen asked. It's now largely irrelevant as the app has been pulled, but I think it's still worth mentioning. Second, sorry Windows users, I do not know how to get this to tether with a PC. Ok, let's begin, shall we? The first thing you're going to do is open QuasiDisk, tap the Wi-Fi icon and get the server name of your phone. Seen here: The name of my server is "deano.local". Once you have that, go to the computer you want to tether. Open "System Preferences" and go to "Network" to create a new location. We're going to create an a new location for two reasons. First, enabling proxy settings on your wifi connection can cause problems with your internet connection when it's not tethered to your iphone. Second, it's inconvenient to be clicking these settings on and off. This will allow us to easily switch between and keep our tethering settings and regular connection settings separate. Once the new location is named (I cleverly named my new location "Tether") select your Wifi connection and click on the "Advanced" button. Then go to the "Proxies" tab, seen below. Check off "Web Proxy (HTTP)", "Secure Web Proxy (HTTPS)", and "SOCKS Proxy". In each of these proxies, enter your iphones server name, seen here as "deano.local". For "Web Proxy (HTTP)" and "Secure Web Proxy (HTTPS)" the port is 6666, as seen in the screen shot. The "SOCKS Proxy" port should be entered as 5050. Click "OK" in the Proxy settings tab and then click "Apply" in Network Settings. Next, we're going to create an Ad Hoc network by selecting "Create Network" from the "Network Name" drop down in Network Settings. Name your new network (Seen as "Tether" here) and click OK. If everything is set up correctly, that should be it for any settings on the machine you're tethering. Next, go to your iphone's Settings, tap "Wi-Fi" and then tap "Tether" (or whatever you chose to name your network) to connect to the network you just created. Then, open QuasiDisk, go to the Wi-Fi settings (if you didn't close out if it earlier, the app may just open to the Wi-Fi settings). Make sure "Anonymous Login" is switched to "Off" and switch "FTP Server" to "On". DO NOT TAP THE "DONE" BUTTON. The Wi-Fi settings screen must be left up and QuasiDisk must be left open for the tethering function to work. Don't put your phone to sleep, either. Allow a moment for the things to do the stuff and the internet to travel through the air and such. At this point your computer should have an internet connection. You can see a visualization of your network traffic using the "Activity Monitor" program in OS X. Please feel free to PM me or post a reply with any thoughts, ideas, changes, etc. that can be made to this tutorial. I hope those of you with QuasiDisk find it helpful.