Friday, August 16, 2002 12:59 AM
First of all, these are not different types of J2MEs, they are the implementations of Sun's J2ME only (CLDC/MIDP). Unfortunately, MIDP1.0 is not a very extensive API, and the actual devices with J2ME support have many more services to offer. The device providers offer programmatic access to these features through the additional API, (com.siemens.*,com.nokia.* etc).
Coming to your SMS question, if you've used a device provider's API, naturally it is not going to be supported by the other devices. If you want to your SMS app to be device independent, then you have to wait for the Sun to come out with the SMS APIs.