Access to the full power of a smartphone to a javascript file, with the simplest (least-verbose) possible API of what a "smartphone" is. Probably scary, and some parts might not be possible yet.

fun_smartphone.js

var acc = require('imu');
var camera = require('camera');
var file = require('file');
var notification = require('notification');
var vibrate = require('vibrate');
var led = require('led');

var location = require('location');
var sms = require('sms');
var contacts = require('contacts');
var phone = require('phone');
var bluetooth = require('bluetooth');
var wifi = require('wifi');

var mobileData = require('mobiledata');
// touch, alarms, ambient, magnetometer, speaker, headphone, battery, compass, screen (brightness), unlock/lock events, ?


acc.angularVelocity; // {x, y, z}
acc.orientation; // {x, y, z, w}

camera.front.getImageSync({opts});
camera.back.getImage({opts}, callback).then();
camera.front.on('data', (frame) => {
	
});
camera.get(3).getImageSync({opts}); // 3 is cameraId

file.readSync('/sdcard/data/something'); // standard NodeJS-like file module
file.writeSync('relativePath.txt', 'foo');

notification.notify('title', 'msg', {opts});
notification.notify('title', imageByteBuffer, {opts});

vibrate.vibrate(20); // ms

led.front.set('red');
led.front.set('#e4f2d2');
led.flash.set(true); // or false
led.get(3).set(); // 3 is LED ID

location.latitude;
location.longitude;
location.lastUpdated; // epoch time
location.enabled; // true/false
location.enable({opts});
location.disable();

sms.readSync(msgGuid);
sms.read(msgGiud, callback).then();
sms.listSync(filter, {opts});
sms.list(filter, {opts}, callback).then();
sms.sendSync(contactGuid, 'hello');
sms.send('+1 1234561231', 'foo', callback).then();

contacts.readSync(contactGuid);
contacts.list(filter, {opts});
contacts.set({data});
contacts.set(contactGuid, {data});
contacts.delete(contactGuid);

phone.call(contactGuid);
phone.call('+1 123456789');
phone.callSync(..);
phone.call(.., callback).then((call) => {
	call.on('data', (byteBuffer) => {
		call.send(waveformBytes);
		call.close();
	});
});
phone.on('incoming', (call) => {
	call.start();
	call.on('data', ..); // as earlier
	call.close();
});

wifi.enable();
wifi.disable();
wifi.list(filter, callback).then();
wifi.listSync(filter);
wifi.connect(ssid, {opts});
wifi.disconnect();

mobileData.enable();
mobileData.disable();
mobileData.set({opts}); // 2g, 3g, lte etc