Can MAC Address be changed?

It has always been IP address and not the MAC address which could be changed by any means. It was simply not possible before. But since the development of SpeedDemon, it gives you the power to Change MAC Address for any number of times. You can read about it in Google also. It is the talk of the town these days.

sounds more like spam....
... because exchaning the mac is simply possible with running a specific command- isn't it?

Yep. ipconfig, can't remember the exact parameters. It has to be done while the interface is down, so I put it in the hostapd init script.