Apple has 3G communication capability on MacBook?

It seems that Apple may incorporate 3G (third generation mobile phone) communication function into its own laptop "MacBook".

If this is realized, you will be able to realize a comfortable mobile environment with MacBook without having to plug in or unplug the communication card or USB type communication terminal each time, but what about the communication system and so on?

Details are as follows.
AppleInsider | Source: Apple may build 3G wireless into future notebook model

According to this article, Apple is planning to install a built-in 3G communication card terminal of PCI Express type instead of an external ExpressCard or USB modem on MacBook. Please note that this will not be installed as standard, it will be treated as option only. By the way, it seems that the possibility of being mounted on the MacBook Pro is the highest.

Also, although it is a communication method of concern, 3G terminals such as NTT docomo and SoftBank Mobile adopt it in JapanHSPDA methodDo you support it, or is adopted by au's WIN terminalCDMA2000 1x EV-DO systemIt seems that it is not clear whether it intends to support.

Considering that Apple will be deeply connected with various mobile phone companies in the iPhone etc. from now on, it may be that it is not an unlikely story.