This download is a no-brainer for iPad-toting Comcast subscribers, but it's not perfect.
If you're a Comcast subscriber and an iPad user, make sure you download the XFINITY TV app. While not the streaming app widely hoped for, it's at least partially there. The killer feature is that it lets Comcast subscribers stream TV to their iPad from anywhere there's a WiFi signal. No 3G streaming yet. Before you get too excited, there's some limitations.