HP Envy X2 will include a special slot to put the keyboard dock, combining it with a tablet device, to be able to turn it into a notebook / laptop.
As a result, in theory, the HP Envy X2 is more superior than Microsoft Surface. But from the listed price of the HP Envy X2 spelled 2 times more expensive than the Microsoft Surface. For information, the HP Envy X2 priced at $850.
The ENVY x2 has a bright 11.6-inch, 1366x768 pixel LED display, up to 64GB of SSD hard drive storage, Beats Audio™ dual speakers, USB ports, full size SD card slot, HDMI port, and for some - the deciding factor - a full-size island-style keyboard complete with a good sized multi-touch enabled trackpad.
Based on this information, the tablet-laptop powered audio Beats Audio (dual speaker) is going to go on sale to the market in late October.