MIDP 3

midp3 的 earlydraft 已经收工了，想看看和midp2 相比，到底有什么改进么？

This JSR will build upon the success of MIDP2 by enhancing the Profile with the following additions/changes:

 

* Enable and specify proper behavior for MIDlets on each of CLDC, CDC, and OSGi, for example:

o Enable multiple concurrent MIDlets in one VM
o Specify proper firewalling, runtime behaviors, and lifecycle management issues for MIDlets
o Enable background MIDlets (e.g. UI-less)
o Enable ?auto-launched? MIDlets (e.g. started at platform boot time)
o Enable inter-MIDlet communications

* Enable shared libraries for MIDlets
* Tighten spec in all areas to improve cross-device interoperability
* Increase functionality in all areas. E.g.

o Improve UI expressability and extensibility
o Better support for devices with larger displays
o Enable MIDlets to draw to secondary display(s)
o Enable richer and higher performance games
o Secure RMS stores
o Removable/remote RMS stores
o IPv6
o Multiple network interfaces per device

* Specify standard ways for doing MIDlet provisioning through other means (e.g. OMA (SyncML) DM/DS, Bluetooth, removable media, MMS, JSR-232, etc.)
* Extensive device capabilities query
* Localization & Internationalization (if appropriate, integrating/augmenting JSR-238 as needed)

A key design goal of MIDP3 will be backward compatibility with MIDP2 content 。

去看看specification ,边看边找些有趣的东西。