Portrait QWERTY phones are generally pretty hit-or-miss affairs, it's either the screen being too small to actually use or the keyboard not being all that great. While I can't speak for the keyboard just yet, the Pax is packing a nice 3.5" screen above that Alienware-esque keyboard that's definitely going to make you more happy than the decidedly smaller one on the HTC ChaCha. Head on past the break for more info and some more pictures.
What Sprint is offering here is a Gingerbread 2.3 packing device with a dual-core processor and, as mentioned, a 3.5" 480x800 pixel screen. No word on other details, but from reviews of it's cousins, like the QWERTY XPRT, also on Sprint, build quality should be solid and Moto's BLUR interface has grown up since the olden days to be a nice addition to plain old Android. The only possible gripe with the phone is it's thickness, as you'll see in the pictures below. However, BGR is assuming it's shown with an extended battery, which all Moto phones feature as an option with an extended battery door, so that might be a non-issue after all.