Good point, a slider would cut down on the height.
I envisioned it as something they could build from off the shelf parts now (from Z10 & Q5), and have in stores in a couple of months, cutting down any developmental costs.
It would enable them to capture the area of the market that sits between the Passport and the Classic.
The Classic has a full keyboard, but lacks the power of the Passport.
The Passport has the power, but lacks the full keyboard of the Classic.
The Wolf sitting between these two, has more power than the Classic & fuller keyboard than the Passport.
