Andrey, I believe everybody here agrees that supporting collada is useful and if exporting is in Trimble’s horizon within mySketchup scope then I see no reason not to support DAE.
Where we differ from you is that you state that DAE is mandatory and the only format needed. I’m pretty sure that isn’t the case for everyone. I, for example, do not need it and would prefer other formats… but well I really hope DAE get’s supported too!
Let me just say that I’m very thankful for being part of this discussion as I learnt a lot from your input and managed to erase some preconceptions I had towards the file formats discussed here.
So thanks, and let’s see DAE in mySketchup please! 