[General Questions and Answers] martinmine:
Although there hasn't been that much activity in this thread, I'd like to give my input on this subject.

The ideas and technology presented in Megaman inspired me and got me into technology and computers in 6th grade and inspired me to start programming which I learned a few years later. I'm currently working on my bachelor thesis and it is amazing to see how many aspects of todays technology was predicted through the Megaman series (Smartphones, Siri/Google Voice/Cortana, the cloud, etc).

There are quite a few challenges when it comes to making this possible. In Megaman, the "digital space" where Net navis operate is in a world in parallel to our own world. This gets more and more vivid later on with concepts such as cross fusion, Beyondard and in Stream where Duo is a net navi from another system (And how can an alien society make a system that is built up using the same technology and architecture as our own? But ok, its not meant to be 100% realistic). However, we must start at a place. I believe the right place to start is to make a way to visualize computer data in a 3D-space, making it easier for users to interact and understand what is going on with their computer. Then net navis could move around in that space, acting as a helper between the technology and humans.

Another challenge is the AI (net navis) themselves. We do not yet have the technology to make programs being able to fluently talk, understand our actions and interact with systems as it is in Megaman, but a lot of research is being done around AI and even Stephen Hawking has recently said that AI might be the greatest threat to the human society we will ever face. If we did have the technology to have the AIs, I believe the largest issue would be the battery on our smart phones (as this is how it works in Megaman). They could run in the cloud which I believe is the best option due to computing and battery restrictions on mobile devices, but then the AI might not have as many restrictions as if they were forced (by design) to run on our phones, which could lead to net navis without net-ops that is far more powerful than normal navis (maybe this is the reason why in the series?).

For every day that passes by, we are getting closer to the society that is described in the Megaman series. Today we have "smart" assistants such as Siri/Google Voice/Cortana which are being developed at a high rate. Even with Windows 10, Cortana will be bundled with the OS "by default". Networks are getting faster, computing power cheaper, and the technology all around us is being connected in what we call "the internet of things", or "internet of everything". In the future, you will have cyber threats to your normal everyday equipment. Imagine how pissed you would get if you wouldn't be able to make breakfast because some kid you were arguing with on the net the last night decided to ddos your kitchen?

Never give up dreaming, I remember I was drawing blueprints like crazy when I was in 6th/7th on how I would implement the digital society in Megaman. I've had several projects where I was going to do something familiar but I have given up as I didn't know how to code/use the tools/have enough time, but I believe one day someone will come up with something familiar.