For three weeks now we have been all over Xilinx' release of Vivado 2012.4 . We are excited about this release for several reasons. We have been using 28nm 7-series silicon for sometime with the KC705 and VC707 TDPs; and soon we will increase Zynq's participation in the mix. Although only in beta test at this point, the rapidly maturing functionality of IP Integrator got our attention as well. While running native on RHEL6.3 we've seen zero crashes; and love that we can have any mixture of command-line, scripted and GUI build awesomeness.