None.
I have set everything, before I have removed it.
I have Email and phone. No text with Samsung.
I has wi-fi build in and I can even browse the internet. It's android based, but there is no Google Play. Maybe if you hack it. I will look into that for sure. It would be nice to have the Escort Live app on the screen.
It's still doable now too, via the HDMI/MHL cable. I can mirror my phone screen, into the Kenwood's screen, but I have not played with that yet. Just tried it once.
I need to find a mount for my phone, in which the phone plugs in into the USB port and that port, would be the MHL port.
What kind of detector do you have? I wouldn't recommend getting anything cheap, just to have something. Only Escort line is recommended, or Valentine 1.
Everything is possible in my opinion, just post here your problem and we will try to help you. Mine, is hooked up, in the fuse box for example.