Hoffa released last Friday the
version 0.3.0 of his port of SDL to the TI-Nspire, nSDL. In this version, along with his usual batch of new features and bugfixes, instead of having a version of the libraries and executables for each variation of Nspire (CX, non-CX, CAS, non-CAS), Hoffa combined all of them in one single version, so your executable should work on every Nspire. Speed and space difference should be negligible though. Also this is pretty much the first version existing SDL games can be ported without problems. Several small games has already been ported by hoffa: a CHIP-8/SCHIP emulator and a space shooter game found somewhere on the Web.
You can download the library
here.