Almost one year past. LG Shine Plus get it latest upgrade OS.
When I bought it in March 2011, it shipped with Android 2.1.
New OS brings some features I like.
1) App2SD works.
2) GUI looks more beautiful, and fonts are clear.
Because I do not jailbreak the phone, so App2SD is more important to me than others.
By move some data or programs to SD, I can install more Apps to it.
here you can download the firmware and also has upgrade instruction.