Pad Transformer – Compensates for Joining Smartphone and Tablet?

ASUS, a company well known in the technology industry, has launched an interesting product. The so-called Padfone, is a technological experience that tries to innovate in the integration of devices that are part of our daily lives: the tablet and smartphone. Watching some videos with technology, and following the evolution of the concept pad transformer from ASUS, I was able to form an opinion more concrete about this mixture.
What is the ASUS Padfone?.
The pad transformer is a phone and a tablet. The difference is that the tablet is just a bigger screen, in which the phone needs to be connected to work. In other words, you have the option of increasing the screen of your handset by placing in a “case” of tablet in it. Would be equivalent to connect a laptop to a larger screen, a tv, for example.

What are the Advantages of Pad Transformer?
The main advantage of the product is that you will have only one device to keep updated. Is less time configuring, installing and uninstalling applications, modifying personal settings, etc. When you need a larger screen for your smartphone, you can continue with the same applications on your phone, with all the benefits of the larger screen. The technology used by the pad transformer calls Dynamic Display, and in the video below you can see how it works on the device from ASUS.
Remember, the above video is promotional, which means it is not always the video experience that the product can deliver. The other video below is not promotional, but rather a “hands-on” in which a pad transformer is tested and evaluated quickly by a technology expert. Note that he has a keyboard as an accessory, which does not come with the “core set” of Padfone, and must be purchased separately.
It seems very practical this type of product, but the video passes a impression that the tablet is much heavier than an iPad. With so many gadgets these days with mirroring of fabrics, applications that run on more than one device at the same time, I wonder if the pad transformer is even a differential or a marketing ploy.
What do you think of this idea? I’d buy you a Padfone? Wouldn’t it be the electronic type that would be most of the time kept in the drawer?