Sorry for the late reply.
I've seen it in the Netherlands. I saw it quite some time ago I believe it was at a specialty woodworking store: Baptist in Arnhem - I tend to steer away from that shop as it's quite addictive - everytime I walk through their front door I end up getting out with a silly smile and several hundreds of Euro's lighter....
Just the other day I saw the Walko 4 displayed at my local Gerritse tool wholesaler. I'm afraid I can't steer away from them....
It's out there, and it's sweet ! It's got to stand in line though, as the current going price of Euro 499 excl. tax for the big brother is quite a bump in the buying road....
However I'm convinced I'll get a sweet deal from them if I decide to buy one.
The clamps are a nice add-on as well: they look very much like the Festool clamping elements, but retail for Euro 50 a pair instead of Euro 90......
Anyway: I'd really like to get one of the Walko-4 sets. In the flesh they feel very solid, and the functionality could be a superb add-on to my MFT3.
I think the Bamboo tables are a big pro as well - I try to run my bussiness as Eco-friendly as possible and worktables that are essentially made of clipped grass go a long way eco-wise
Regards,
Job