> And where is Surface ? Is it available to buy somewhere ?(I never saw a single trace of it in europe) I have a feeling that Surface is already either too expensive or too obsolete.

I can't speak to what happened to it commercially, but it definitely was available to buy - I organised a demo of it at a trade show in 2010. Since then haven't really paid attention to it, I know a second version of it came out, but no idea how well it did or is doing.