World: r3wp

Scientific notation of numbers and automatic reformating time! values 
(00:00:00 --> 0:00) are the most annoying parts of REBOL for me.
It would be more useful if it doesn't happen when FORMing.

Is there a possibility for cyrillic/Russian at Rebol/View except 
for pixelart drawing the characters?

In R3/View, but it's currently buggy and limited to Windows and Amiga

Since you'd have to switch languages anyway, you could also consider 
Red with the GTK+ binding

Uh. In Red, everything is possible with any bindings