Thanks to some peeps at the Mobile Geeks, an FCC document has been dug out which reveals the "ASUS Mobile Dock Keyboard" which uses Bluetooth
The last time we had a little chat with the ASUS CEO Jerry Shen, it was quite evident that he had been in support of bringing back the keyboard dock to the PadFones all this time. Bringing this back means that one single product is going to hold three form factors which will include a phone, a tablet and a laptop. According to a recent leak, it has been hinted that this product is pretty much coming our way soon. Thanks to some peeps at the Mobile Geeks, an FCC document has been dug out which reveals the "ASUS Mobile Dock Keyboard" which is going to make use of Bluetooth for connectivity instead of a physical docking interface.
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The leaked picture is not so clear to put a finger on any exact spec but it still manages to show the 25cm width which indicates that it has been made exclusively for the upcoming PadFone X for AT&T. However, the lack of locking mechanism suggests it might accommodate other similarly-sized PadFone Station tablets as well, though there's no telling how secure the fit would be.
The most important advancements has been ASUS’s ides of keeping the bulky battery out of the product to reduce the weight but this means that the phone or tablet would not be able to be charged with the dock. In fact the 450mAh cell will be used to power up the Bluetooth radio plus the multi-touch trackpad and this will have to be charged separately with the dock's micro-USB port.