For those of you searching for an XT2, I have a potential alternative. Since I've been using an XT2 very successfully with my Mavic Pro since this thread started, last week I went looking for a second one to use with my Spark. As many of you have found, they are hard to impossible to find. I did a bit of homework on the specs, and found the LG Tribute Dynasty from Boost or Virgin mobile to be fairly close. It's built around a Mediatek processor with a Mali GPU subsystem vs the Qualcomm Snapdragon with Adreno GPU. However, they are both running 8 Arm Cortex A53 cores (albeit with slightly different clock speeds). As a package, the LG scored only slightly lower than the XT2 in the Antutu benchmarks, and can be had from Walmart for $49. The display is slightly smaller than the XT2, but it's very thin and fits PERFECTLY in the hand controller. I've only done about 2 VERY close range flights (like 10 feet away) with it and it seems to be working fine. I WAS using my old Moto G3, but I was getting constant RC connection errors and disconnects even with the controller right next to the AC. In my very short testing, I haven't seen any disconnects with the LG, and it seems very responsive. I'm going to do more tests once the weather clears up a bit. For the record, I always use an OTG connection to the RC.
I doubt this would be a good option for the MP2 given the greater video downlink bandwidth reqs...but it might work out for the Spark and MP users. I'll post back once I do more testing.
LP
Huh? Walmart has them and they are all over eBay as well.