This isn't too similar to any previous thread Anyhow, people who wish to keep the interiors of buildings monitored in their absence often use a Webcam with a Web server, and a smartphone might be a convenient remote monitor for the image. The software for the phone uses either ActiveX or Java. In the case of Linux, which does not support ActiveX, this would be Java. However, Android's version of Java doesn't seem to be similar enough to other versions to allow the use of such applications on Android phones. It's not too likely that the manufacturers of Webcam hardware will write custom applications for Android phones, unless they really capture a lot of market share, so some strategy for running standard Java applets on Android would support this application, and probably many others as well.