Complex sentence: The iPhone kit was developed first (its code was ported from an insofar undisclosed code base), and the Android port was completed later (Q3 2010); the latter was done in collaboration with Communications Security Establishment Canada.
Split into simpler sentences: The iPhone kit was developed first; its code was ported from an insofar undisclosed code base. The Android port was completed later (Q3 2010) and it was done in collaboration with Communications Security Establishment Canada.