Bring it on Steve - if you dare !!!
I would love to see Microsoft in court taking on Linux for copyright and patents etc.
The defenders only have to argue that Microsoft steal code and use other people's patents without permission. (Microsoft have been found guilty on this quite a few times and have paid out millions).
How do we know that what Microsoft is claiming as theirs actually is. Microsoft purchase, copy, and borrow quite a lot of code. They claim that they own the copyright, but in actual fact, they can only claim copyright to portions of it. Recent court cases which Microsoft have lost have resulted in damages. You could argue with good reason that Microsoft have sold illegal software to every person with XP - and that is a lot !
Microsoft like to hide what they do behind closed source. It protects them not only from people stealing their ideas, but also it makes life difficult for patent holders, companies with rights and a variety of licensees to know what is going on under the covers.
So let's move on to open source and it's licensing etc. It's obvious that Microsoft will have lifted code that has some very interesting licenses. Some of those require that Microsoft release the source code of applications based on it.
Open source is far more legal than anything that is closed source. It is easy for rights holders to identify infringments and these can be dealt with - GIF file formats being an example.
Linux is easy to compile and change - most distros have already compiled the entire OS and most applications to 64 bit. Microsoft have hardly started with 64 bit compilation and they seem to be having problems with it. There are lots of missing bits in the 64bit versions of server 2003, vista and xp. So any court orders against them could be financially disastrous for the company, and damages could run into the millions.
Pandora's box is waiting to be opened and Steve wants to have a look inside. Go on Steve, I dare you!
Things are gonna get interesting !