A new release of poxlib is up, with support for the Leapster Explorer. A new djsm will be released soon (this week if I’m lucky) with support for it as well. There is also going to be a fork of djsm – named lxsm – which will be touch-centric, but still work on the didj.
Leapfrog hasn’t at the time of this writing released the sourcecode for the LX, so some things can’t be done yet. It is interesting to see some bugs still kicking around from the didj kernel. Of note, the transparency color bug in the mlc driver is still present.