HP50g spins circles around the TI-89

[pito]

Why HP or TI or XYZ company shall consider a development, production, sales and world-wide maintenance of a stand alone calculator when:
A) today every child, pupil, college student, university student, science - engineering - math professionals carry a smartphone or a tablet with them all the time,
B) such gadgets are equipped with a beautiful >4inch color touch display, w/ at least 768MB of memory, at least 2x1.2GHz CPU, an xxGB large sdcard space, w/ wifi, 3G/4G/LTE, BT, navigation, hires cameras, etc.,etc.,
C) where the online shops offer >250 calculator apps,
D) where the development tools are free available so you can develop/sell/maintain what you want,
E) where soon (or even already today) these gadgets can run Octave, Matlab, Mathematica, or any kind of HP5X, WP4X, TI8X you can imagine..