The item of interest, barely four hours after the last major drop, consists of partial source code for the Nintendo 3DS family updated as of October 2014:
Source code for the 3DS bootroms and kernels, including modules (drivers) for 3DS mode.
Precompiled DSi and GBA bootroms (the latter being the NDS variant).
The above list is the result of a cursory analysis: it may contain inaccuracies. However, notably, it does not contain any regular system application or applet, meaning the inevitable question about what this means for the 300 icon limit can already be answered.