This is what I know so far... This app will be separate from the DIRECTV scheduling app. It will only work with HR21 and higher model HD-DVR's. The app will stream live programming and recorded programming from your DIRECTV receiver to your iPhone, and is expected to work over WiFi and 3G data connections. You may need to make some configuration changes to your home router (a.k.a - port forwarding), and I will get that information to you all ASAP. Feel free to ask any questions that you may have and I will do my best to answer them or get them answered for you.