This is first time I used the open source toolchain for FPGA for something real: I converted the VHDL code that was used to make ICEd board to DIPSY tool into verilog, and created new FPGA images with IceStorm and it works, works FIRST time tried:

1. IceStorm toolchain re-compiled to Windows
2. Not tested before Verilog code
3. Constraints taken from IceCube, not changed
4. from Verilog to BIN with IceStorm
5. Download with Diamond

>>>> Working FPGA

Ok, DIPSY FPGA itself is not yet supported by IceStorm, but the ICE family itself is. Nice.