Never heard of those, but they do sound promising.
I'm especially curious about the outcome of the X3 computer.
Although the website seems a bit down and lacks infos.
In fact, if there was no pictures, I'd say it is a project wishlist and no more ...
But there ARE pictures of them electronic boards
If this guy could get his products of the ground and for sale on the internet it would be great.
Looks like he has plans for a new MSX standard using Z80380 processors, the X3. Nothing's wrong with his ambitions at least.
When the X3 was to be produced it would be a waste of time. There already is a Z380 expansion for MSX and nobody has bought it. So, if you want the X3, buy the LPE Z380.