I am developing a sencha based application for iPhone & Android. As a S/W requirement, i need to identify device (on the basis of IMEI or MAC address) accessing the service. e.g. If a user of iPhone visits my sencha-web-app first time, he will need to register. And if he visits again, Application will detect and registration process will be skipped.
Q: How can i get IMEI or MAC of device using sencha, to identify it uniquely?
You will need to wrap your Sencha application in a native wrapper. I recommend using PhoneGap, they have a nice UUID property as documented here: http://docs.phonegap.com/en/1.3.0/phonegap_device_device.md.html#device.uuid