I wouldn't say the multilayering would be too much of an issue if you're just lopping off the end of the "L" as it only contains traces for the controller ports (Yeah, not serial ports, you've been looking at PCs too long :-P ), but you will have a problem with the keyboard. The matrix is different, so it won't plug in and work, no matter what way you wiggle the cable. What you'll have to do there is take the cable connector from teh A600 Motherboard, trace all the connections to the keyboard controller chip, and then remaking the same connections to the A1200 chip. And that's assuming the decoder chip is the same on both, cos I'm not too sure. Go for it by all means, but this, and the problems with connector locations mentioned above, will make it very tricky indeed!