We totally agree about uncertainty
Although the device itself will be complex (consisting of RAM, ROM, CPU, etc.) we are hoping it will be fairly simple to build, as it will use off-the-shelf parts. It will also very very simple to operate (and have upgradable firmware) However, building it will probably be a problem for novices. Amiga's are getting less common, and in some places in the world, getting hold of the required Amiga is very difficult.
We will be transforming into a more generic organisation, which will strive to preserve all the floppy disk media we can get our hands on in the near-ish future. Atari ST will likely be the next platform supported.
This does bring another point though. Many users of other platforms do not like the fact that they need an Amiga to dump disks. Even if the hardware is more expensive (to buy the components) they seem to rather a hardware device. Unfortunately, we still won't have it ready for quite some time, but at least people know it is on the agenda.
I think it is also likely they we will be considered a more serious organisation when we have our own dedicated hardware (for example, by entities that could give us a lot of help in several key ways). Annoying, but unfortunately a fact of life.