>What do you mean, "still not where it supposed to be"? Where should it be?
>
>I see .Net apps all the time. They are commercial products. We're in the process of installing a new B2B system that's completely written in .Net. It was developed in Europe and is being used extensively there. We're the first US company to go with it.

B2B yes, major corporate websites probably (unless they are java), but how about B itself (as in backbone).
How many SME businesses you saw running most of their day to day activity on presumably some suite of brand new NET apps.

You know; like you enter some regular company offices (SME 5 - 100 employees or 80% of world business in other words) they have sales dpt, operations dpt, accounting/invoicing dpt and so for. Next to Outlook and Excel, all employees are doing their daily job on one business system or another. Weather it is sales, invoicing, accounting, purchasing whatever.
Or what they call in more eloquent IT language 'ERP systems'

After 10 years of being 'as mainstream as it gets' I would expect bigger share in these environments.
Which might be the case in US, I just don't see it around here.