The Supercut is a MUCH better tool than the Multimaster. The Vecturo will be a cut above the competition (pun intended) BUT read the last section of my post. Vecturo blades being the same as Supercut is fine, they are not that hard to come by. Oscillation ratio is the same as Supercut (I was told).
Blades don't mix (easily) with Multimaster and the Supercut blades are usually only found in pro stores where as the Multimaster market is quite large with plenty of aftermarket blades. I have plenty of blades, so I don't foresee buying any blades for the next ten years based on my current ratio of ruining blades. That feels reassuring.
What I did find out on the construction fair I attended last week in Sweden - and yes, I did handle the Vecturo

- is that I won't be spending any more than I did on this baby, the Vecturo is basically this. Feels and sounds like my pimped up Supercut:
I'd rather Plug-it-up a Supercut unless the price was similar. I did pimp my Supercut as soon as I got the quick change model. Works like a charm. Very solid machine and the extra oomph over the Multimaster is apparent.
However, there are news from Fein that does take a little sparkle from the Vecturo:
The Multimaster will be upgraded to a stronger model - and with "rubber suspension" to combat user fatigue. It was on display at the fair and it was a little thicker but it did work well. I don't remember the specs but it is stronger.
Also, the Supercut will be upgraded to an even stronger model and will be ahead of the Vecturo for sheer power - and it will have the motor suspension too. The Vecturo will not. Since my Supercut is probably going to last quite a while I am not inclined to upgrade I will take a look at it for sure. I use the Supercut enough to be interested in less vibrations but for the most part the power of the existing one is enough if you let the blades do the work. I don't remember if the Fein rep said that the new one will have a larger "swing" rate and cut faster, we did discuss a lot and I was running a slight fever.
Also, Fein will release a 10,8V screwdriver/drill system within the year.