Nokia,
A number of companies produce themes of Nokia. Some of those companies include Elefun Multimedia Company, Lasyk Networks Inc and Word Press Theme Shock.
ceo of nokia asked google to provide something different to them and all the other companies are using android so what's the different between nokia and other companies and google does not done any thing and thats open the door of windows for nokia may in feature that can be posible
Nokia and matrix
One can find more information regarding the Nokia N73 Software, directly from the Nokia manufacturer, as well as from informational websites run by companies such as Bright Hub and Yahoo.
For example Nokia, M-real, Neste Oil, Patria, Wärtsilä, UPM-Kymmene, F-Secure.
Referring to what specifically, from this question all i can say is that they are different companies
Probably the largest.
There are many companies manufacturing smartphones. Top of them are Apple (Foxconn), Samsung, Nokia.
Consumers can purchase the Nokia Lumia 920 directly from the Nokia company. Best Buy offers both in-store and online purchases. AT&T sells the phones as do a large number of online companies.
I would go to the Nokia website. They would have a great way to search different phones and services. They can give you the options you would like in a phone and the companies that carry it.
The phone market is very competitive, but there are three main companies that stand out the most in the crowd. These companies are: Samsung, Nokia, and Apple.