“Novell is one company where assimilation to Windows and obedience to Microsoft has become more complacent.”There are cases where there is resistance to assimilation, in which case Microsoft just needs to bring its former employees or loyal supporters into the board of companies resisting takeover or compliance. The Citrix acquisition of XenSource, which serves Microsoft very well and bears a resemblance to Yahoo's current proxy fight (even the mainstream press acknowledges that it is a "proxy fight"), is only one example of this.
Novell is one company where assimilation to Windows and obedience to Microsoft has become more complacent. The company almost practically depends on its rival/partner (frienemy) and it is not a reciprocal relationship. Microsoft just exploits Novell, whereas Novell relies on this exploitation for coupons and other benefits like priority in deals.
Only yesterday, the following article appeared. It speaks about the possibility and the business sense behind Microsoft acquiring Novell. Do have a look.
Microsoft & Linux: At What Point Is It Cheaper to Just Buy Novell?
Microsoft no longer sees itself as simply a Windows company. One recent indication of this is their determination to buy the LAMP-centric (Linux/Apache/MySQL/PHP) Yahoo! Instead of migrating all the tried and tested Yahoo! services over to a Windows server infrastructure, wouldn't it be simpler to establish Microsoft Linux through the acquisition of Novell?