With the release of Quartus II 9.1 on 2 november 2009 Altera has finally
decided to make a free Linux Web edition available.
https://www.altera.com/support/software/download/altera_design/quartus_we/dnl-quartus_we.jsp
http://www.altera.com/corporate/news_room/releases/2009/products/nr-quartus-ii-v91.html?f=hp&k=wn2
This means it is finally possible to synthesize the FPGA firmware for
the USRP on Linux without having to use a windows emulator.
Best Regards,
Martin