Well, whether the delay is 1-2 days or 4-6 weeks (I *highly* doubt that -- I think that was either started by a Solo fanboy or a DJI dealer trying to unload a back room full of Phantom 2s), there's a relatively inexpensive way to get up and running without investing in something pricey like an Nvidia Shield.
You can pick up the "pay as you go" Moto G from Best Buy for a mere $39. You can use it without paying for any phone service, just go through the activation sequence, let it assign you a phone number, and whenever it asks for money say you'll "pay later." Then, after all is done, put it in Airplane mode and turn on Wi-Fi. Boom, you have a Wi-Fi only Android device that will control the Phantom about $40.
I just did that today, and I now have my P3P up and running. The Moto G's not the fastest, but as a stopgap, it's a cheap solution to get up and flying. (Plus, by me doing this, it virtually guarantees the iOS app will be updated within the next 24 hours. : )
http://www.bestbuy.com/site/verizon...lack/3041063.p?id=1219086346405&skuId=3041063