Titomi, it is dual standby.
Yesterday I received the T328w unit (white). It looks beatifull I hesitated to put on the rubber case although with my history of damaging phone's I put it on anyway.
First impression is really good. In normal operation the sytem is fast it has run smooth all the time. I don't have problems with the sensivity of the screen. The screen looks nice!
The only problem I have is the charger. It doesn't seem to charge my phone from the wall outlet. Although it sais it can operate between 100V-240V, our voltage in the Netherlands is 230V. Could either be a damaged part or maybe somehow the adapter is not suitable for Europe. It doesn't really matter I have a lot of USB charging options and the cable is ok.
When ordering from Etotalk all documentation comes in Chinese and also some Chinese program's are installed en some settings are to be changed because some OS parts were still in Chinese. Could be challenging for non-technical users, although if you are generally self supporting with computers you won't have problems setting up the device.