I have these basic questions:
I am trying to build an application on Nokia NFC 6212 device. I wanted to read the IMEI of the device, unfortunately "System.getProperties()" call returned null. I was told that i may have to buy certificate from verisign.
1. Is it necessary to obtain certificates in order for my application to install/work?
2. Other than IMEI what are the other data that would be blocked by the certificate.
3. I will need to use OTA , GPRS, contacless card read & write features. Will I need the certificate for all of these?