Francis and I just came across this: http://cvxgen.com/docs/index.html "CVXGEN generates fast custom code for small, QP-representable convex optimization problems, using an online interface with no software installation. With minimal effort, turn a mathematical problem description into a high speed solver." Firstly, more fellow-travellers in the DSLs for computational science space. Secondly, potentially applicable in vision stuff, maybe. Paul