It should be possible in some cases (but not all!) to get the users mobile phone number programatically and populate the signup form already with that number... a nice little enhancement if it works.
Turns out to be not such a great feature. Only works if the phone number is stored in the SIM card, and only with certain providers. Doesn't work on my Swisscom Samsung Galaxy. Possible wontfix.
It should be possible in some cases (but not all!) to get the users mobile phone number programatically and populate the signup form already with that number... a nice little enhancement if it works.
TelephonyManager telephonyManager = (TelephonyManager)mAppContext.getSystemService(Context.TELEPHONY_SERVICE); String phoneNumber = telephonyManager.getLine1Number();