Device Detection Services (API)
Are their device level targeting APIs out there. It's a pain keeping the device lists with user agents updated all the time. Any SaaS that provides this on monthly subscription? So like an API that spits out info about the device, browser, screen size and so on? There are a few:
http://www.scientiamobile.com/
http://www.liferay.com/documentation/liferay-portal/6.1/deve...
https://51degrees.com/Products/Device-Detection Not sure if any of these types of services are what you're looking for.