Bought PocketMFP software recently to use with Falcon4/AF. It allows you to use your PDA as the MFD screens in F4 and F4AF. It’s really cool and works very well indeed. I use an Axim 51v from Dell (sadly no longer made). Can be used with the Hog but really comes into its own flying the Viper. It officially supports F4AF and OF version of Falcon. But it seems to work so far in Red Viper. Check it out here. Costs €15.