Minecraft PSP is a new Lamecraft mod based on s4inexcraft 1.2. Only this mod has a normal survival mode without serious freezes, bugs and lags. I am trying to make this mod more "minecrafty", so may be one day this mod will be like Minecraft PE 0.7-!
Work in progress
do they have working open/close animations? even if they don't what you're doing is beyond all that was possible! also: has this been tested on PSP1000, because it's not working for me on it.
Currently they have not open/close animations, but this feature is is my plans. It doesn't work on psp Fat, but when 1.3 will be done i will make a special version with small world for psp 1000. :)
Finally, someone in this community made progress