I'm not so sure how well the slider will function. It looks interesting, but will it be practical? What do you think?

I just don't know about a portrait slider....... I know this isn't the first portrait slider, just not sure I like the idea in general of a portrait slider. IDK we shall see I guess.

is this the app that drains my battery in 6 hrs?

As far as sliders go, Im a big fan of the T-809 Samsung not sure if anyone remembers but that was the only Positive slider experience I had. Still very hazy on this, Blue_Cadet3 is right a portrait slider? I mean seeming as it is touch sensitive I would assume it can drop to landscape, I think the option to have a physical Keyboard was the direction they were headed with this one.

could be interesting.