The problem with the autoconnect is that the phone never knows what connection to use after a drop and it will display the Internet Connection dialog so you would have to check your phone anyway to select the connection.

Let's say I could figure out a hack to tell the phone to autoconnect to the last connection used. Yappari will have no way to know if the connection dropped or the user disconnected it, so in both scenarios Yappari will autoconnect the last connection and the user can never disconnect unless the option is turned off or Yappari is closed completely.

You can always turn on the "Connect automatically" option in your phone and configure a Search interval. Delete all your saved connections except the one you want to connect without asking and that's it.

... but I wonder how much your battery will last :P