So what are we to make of the TV-M7? Our feeling is that it is an excellent companion to TRENDnet's line of wireless (and wired) IP cameras. I would not recommend it for setups of less than two cameras, unless you are using a single camera as a door monitor. At that point the ability to listen to audio from the camera (if turned on in the camera setup) stands out, as does the lack of a microphone to send audio back.
As a digital picture frame the TV-M7 performs admirably well. The small internal storage is overcome by the ability to throw in a removable drive to handle your images. Added to this is the ability to pull images from a network share (like a NAS); this makes for a very versatile digital photo frame. Other options along these lines allow you to change the length of time the images stay visible as well as changing the transition type. Audio and Video playback are certainly not high-lights of the TV-M7 at all. They are included more as an afterthought (due to being able to stream live video and audio) more than a full feature. The clock/calendar function is more of an alternative use one, although it does work quite well and even helps conceal the primary use of the TV-M7.
The included remote is easy to use and offers multiple paths to use the TV-M7's features. During our time with the TV-M7 we placed it on our desk, our nightstand and even on the wall near the front door. In every place it was put we were still able to use all of the available features and still easily revert back to its original intended purpose. If you are looking to setup a multiple camera security system but do not want to turn on a computer every time you want to view the cameras, then the TV-M7 is a great item. It can shift to a simple clock, calendar or digital photo frame when not in use, but allow you very quick access to your external "eyes" with a simple press of a button on the remote. And really, when you are thinking of security and monitoring that is exactly what you would want.