As the system stands at the moment, the system uses a cellphone module with a camera. The future is is to rebuild the system around video as well. This addition will change the direction of the blogging as well. It might not be a better choice but just another way to store memories.
While the information stored can always be added to, there are also nodes to the system that can be thought about. For example, digital picture frames which rotate through the images taken over the week. Using the Database of images subject, people, or even friend image collections.
As for the network, at the moment the system is mix of protocal and can be cleaned up and put on a single protocal. When the cellphone network speed get faster, the system could one day be one just a cellbased system or a more open system using purely an 802.11 network b,a,g,n or what ever the future gives us.