I thought the App was only for the 536?
As for an XT coming out "so soon" ... I bought my BCD396T in 2005 and the replaced it when the XT came out nearly 4 years later. I don't call that "soon".
So I gather no one here has both a 396XT and a 436HP and can convey the difference between the two? I can read brochures, but I'd rather hear from someone who has one.
I have both the 396XT, the 436HP, as well as a 396T.
The 436 is a bit larger than the 396XT, Not as big as the PSR-500/Pro-106, but bigger than the XT.
The 436, for me here in the DFW Metro area, appears to be more sensitive (using the R/S 800MHz antenna on both units). I'm getting better reception of the more distant systems on the 436, and the decoding is a bit better. (Note that other than the more distant systems, I was not having issues with the 396XT.)
The 396XT has the different color options for the display backlight, whereas for the 436HP, you have a small alert led near the speaker, color selectable per channel/talkgroup. The display itself is white, and I find that I prefer a higher contrast setting than the default; that's an easy setting.
I have not taken a trip with the 436 as yet, but will before ling. I have the Uniden GPS puck that I used with my HP-1, so I may try it. I don't expect any problems.
Generally, the 436HP has replaced my 396XT as the grab & go scanner when I leave the house.