[brdrak]

Not an Oracle user, but aren't they primarily pushing their DBMS and related products, with their RH clone merely a certified platform for the their core products?

Same kinda true of IBM too, no? Except AFAIK, they don't even have a Linux flavor the claim as their own. I think they're clearly a supporter of Linux, but any marketing I've ever heard from them (admittedly not much), was for their own core products.

Red Hat is indeed a commercial company with a Linux distro as its core product, but, while it may be the most successful "Linux" company, isn't it small potatoes compared to AAPL and MSFT? Most non techie people I know probably wouldn't know what Red Hat is, but I suspect all would know Apple and Microsoft.