I'm a long time user of MATLAB (primarily on PCs) and I've ran 7.01 on my old powerbook G4 for years now. It has always been terribly slow running under X11 emulation but ok for writing programs and limited testing. I was eagerly awaiting the new version for intel macs because I assumed Mathworks would write a native version to run on the new architechture. After recently getting a new MacBook Pro through work and hearing about the MATLAB for intel macs public beta I downloaded the software and installed it on my new Mac. I couldn't be more disappointed. The new version is still running under X11 emulation and is at least as slow as the previous version. We were looking at buying a couple of maxed out Mac Pros (16k dollar range) to do analysis at work but I don't think there is any point as MATLAB runs at least 10X slower under X11 emulation as it does on Windows. Needless to say this is heartbreaking. Is there anything I'm missing here? Right now I'm so angry with MathWorks I don't know what to do. Currently the only solution seems to be to run either Parallels or Bootcamp and run MATLAB under a windows partition (to at least enjoy the better performance of the new machines). Any other suggestions out there, maybe I'll have to look into compiling my programs in C+. Damn. Let me know if you're just as baffled by MathWork's ignorance as I am.