Mikelelere built a free Logic Shrimp v2b PCB. This board uses a single 23LC1024 SRAM to capture data on 4 inputs. The current v1 uses four 23K256s with each recording a single channel. Aerial data lines (SD0 – SD3) are now bi-directional as well.
If you build a free PCB we’ll send you another one! Blog about it, post a picture on Flicker, whatever – we’ll send you a coupon code for the free PCB drawer.