In case Miguel makes it popular to take the name of a previous company and change the order of the letters a bit to find a name for a new company, this is my proposal for Nokia (as I pass that shop quite often at night when going home and have to smile everytime):
There is also a chinese variant called NOKLA =)
You have the wrong algorithm for the Xamarin name.
http://adtmag.com/blogs/watersworks/2011/05/interview-with-miguel-de-icaza.aspx?sc_lang=en
The name Xamarin comes from the Tamarin monkey.