Might be a bit late on this comment... But Macs don't have serial ports anymore. So much for applying patches using it.
Well, a couple of things:
1) You can get USB-to-serial adapter plugs for the macintosh. I've seen them listed at MacWarehouse. I've been told that these plugs work for getting legacy-free PC's to do serial port upgrades, but I haven't heard whether they'll work with VirtualPC+EmpegUpgrade. It would be interesting to know the answer to that question so I can stick it in the FAQ.
2) There are plans to make the empeg software allow upgrades with ethernet and USB. This is in the FAQ entry on that subject.
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Tony Fabris