useragent-node

var express = require('express'), app = express();
app.set('view engine', 'm')
app.engine('m', require('hogan-express'))
app.set('views', '.')
app.listen(3000);


app.all('/', function(r, s){
		s.render('test.m', require('./useragent.js')(r, ['iPhone','Android'], {}));
})

Common user agents