FTDI Programer notes:This is a MAC OSX (10.1 .2 & .3) program.  I have tested it on .2 & .3 ( Wallstreet & G4 ), I don,t have a .1 system any more, but it should work.The FTDI VCP driver must be unloaded, it fights with me for vendor 1027(0x403), product 24577(0x6001)( FTDI factory defaults ) and wins ( the programer will tell you ).  If you use a chip that the eeprom's programed vendor or product ID values are different (changed from the default ), there should be no fight.  I don't use the VCP drivers because I need to talk directly with USB control port to read and write the eeprom.  I used a program called DesInstaller at http://krugazor.free.fr/software/desinstaller/DesInstaller.php to remove VCP device.  DesInstaller is great program.The programer will program the FT2xxAM & BM ICs, just the "Rev4" extensions will have no effect on the AM chip, at least that's what FTDI tells me, I don't have any AM chips to try it on.  I have only tried it on the FT245BM chip ( all I have ).You must do a Read before you can do a Write.  I did this so I could tell I had the right device and also so I didn't have to retype all the values each time I tested it.The Enable button just enables the Write button, it's only a safety feature.  Two clicks needed to write.The programer does very little checking of the values entered,  It will write what you enter for the most part.  You don't need to be a programer to use this.  If you don't know what something does, leave it as it was read.The source code is also available for downloading.  I made it so it can be easily changed to other languages, all words are in the MainMenu.nib file opened with Interface Builder and all messages are in the Localizable.strings file  opened with any text editor ( ex. TextEdit ).  You should be able to translate it with out knowing programing.  If you do, send it back and I will post it.Now for the warning.  This is my second cocoa program, the first was the tutorial!  Be aware.  Use at your own risk, I can just tell you that it nicely programed my FT245BM chip and that all.  As I get more feedback, I will put it in this file. Any questions or ideas can be sent to me at the email below (don't spam me).bruceb@bitsltd.netBegin plugs:If you like the software, just visit my web sites:http://www.smartstrip.nethttp://www.smartstrip.usIf you really like it, get your friends to visit.Thanks to FTDI for providing me the programming specs andBernd Walter Computer Technology ( http://www.bwct.de ) for some basic ideas from ftdi-eeprom.c.Thanks to Apple for being Apple.End plugs: