Here I will document the parts list and build guide for all BLM users. Once there's a bit more knowledge a wiki page could also be written.
BOM:
http://www.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=e31c510729
Quantity Recommended Description
Resistors
660-MF1/4DC1002F 4 4 10k through hole
652-CR1206FX-1002ELF 41 100 10k 1206
652-PTL45-15R0-103B2 4 4 10k slider, 15mm shaft, red LED
652-PTL4
A new BLM has been born
Very nice to build, no big troubleshooting required if you are careful enough and don't forget a solder joint or create an unintended short.
Andy deserves great respect for his sophisticated design, this is really professional work and sets a new DIY standard! Although the BLM16x16+X project is 5 years old meanwhile, you still can't buy a device with 290 buttons and duo-colour LEDs - you can only build it by yourself - and it has never been easier!
Best Regards