Results for i686-pc-cygwin (c, c++, gfortran, objc) are here:
http://gcc.gnu.org/ml/gcc-testresults/2005-04/msg01363.html
No regressions for c, c++, gfortran relative to RC1.
There are several new tests, which all pass, and one less failed test in libstdc++:
26_numerics/cmath/c99_classification_macros_c.cc (test for excess errors)
Gareth.