Matlab 2007b has been made available on OIT's GL and Research Systems (both Linux and Solaris). The license has also been renewed and updated for another year.
The default 'matlab' is still 2007a on these systems, but 2007b can be run directly out of AFS via - /afs/umbc.edu/software/matlab/r2007b/bin/matlab for those that want to try it out.
We are working with Mathworks currently to successfully add the symbolic toolkit into the 2007b version, but the previous version of that toolkit is available in the mean time. Everything else we are licensed for is available in the 2007b version.
The Windows version of 2007b has also been installed in OIT supported labs. The software is now available via MyUMBC.