What is the market share for the various .Net framework versions?

Question

Does anyone know if these stats are collected or exist anywhere? Any anecdotal evidence is at least slightly helpful

Answer 1

I found this link: http://discuss.joelonsoftware.com/default.asp?biz.5.592012 Somewhere in the body you'll find the following figures:

~80% .Net 1+
~50% .Net 2+
~20% .Net 3+ (~17%  Vista)
~03% .Net 3.5+ (Skewed b/c I have 3.5...)

I don't know where these numbers come from, but it does make some sense. HP and ATI have their software written in .NET (1.1 I believe), so almost everyone who has an HP printer or ATI graphics card has .NET 1.1 . All Vista users have .NET 3.0 .

Answer 2

Might be interesting to add some Linux / Mac figures into the mix?

I know Ubuntu comes with Mono installed by default from at least 8.04