Now how do you test this sort of device? For us the only way that we found we could do that was by making sure each of these features worked exactly as advertised.
Picture Frame - This feature is one of the best in the TV-M7; the screen is bright, but not contrasty and is able to display both portrait and landscape images quite well. We did run into a few minor performance (speed) issues with pulling from Flickr and Picasa to local storage, but other than those minor stutters there were no issues with displaying images in a looped slide show or a single static image.
Video Viewing - Unfortunately this one is a little less than fantastic. The video quality is not great and the audio (due to the speakers used) is just plain terrible. You could spend a little extra and use a set of external speakers, but that (in our opinion) defeats the purpose. I would not recommend this for use as a playback device for movies or other types of video.
Music Playback - As we mentioned with video playback, we found that audio playback was not at all up to our standards. It was hollow, reedy and lacked any presence. As we mentioned above, you could use external speakers but it only adds to the cost and bulk of the product.
IP Camera Monitoring - As this is what the TV-M7 was designed to do, it was the best functioning part of the product. I was able to view both of the TV-IP422W cameras that I had attached. The streaming video quality was good in both bright and low light conditions.
Clock/Calendar - This feature is a minor one, but I found it to be quite handy. I like the ability to show an image (picture) of my choosing and to have the clock visible in the corner. I do wish that TRENDnet had made it a little "cooler" looking, but in the end it is more than functional.
Wireless Connectivity - The speed of the g spec wireless was more than enough to account for up to four IP cameras in live view. This speed was also good enough to stream pictures from a NAS share and only had minor issues when grabbing images from Picasa or Flickr. The biggest problem is during the initial setup. Despite the ability to connect the TV-M7 to a computer, you still have to use a virtual keyboard. This can take more than a few minutes to get setup properly. TRENDnet may want to look into allowing for configuration through IP or when directly connected in future revisions.