After you mentioned that, I wanted to know too. I ripped open my Farallon EtherWave Printer Adapter to get some pictures of the PCB for a rough idea of the architecture. I wish these pictures (particularly the second one) were better, but they're a start...
Looks like the LocalTalk portion (and probably the main firmware?) is done with the Zilog Z8018110FEC. The Z80181 is a microprocessor with a Z85C30 SCC built in. I've also identified a Hynix 32KB SRAM chip. I didn't want to tear off any of the stickers, so I'm not sure about some of the chips. I bet a good chunk of the rest of the chips are for Ethernet. I would assume the chip with the 34F939 sticker is going to be an ethernet controller.
If anyone wants better detail I can reopen it and take pictures with a real camera...