It would be nice to know what tools would be provided to upload your own designs into the FPGA, but I'd bet money the software doesn't exist yet ... well maybe just bet $1 just in case
Anyone with enough skills to do FPGA work shouldn't have much problems writing a small program to do the job uploading configurations.
However It is very unlikely that you will ever see tools on AmigaOS needed to generate the bit files (as these are proprietary and provided by the FPGA vendor). But you really what the most powerful computer you can afford for that task and the SAM is not it.
