Code works in UTM coordinates. Zone boundaries cannot be crossed: Introduce nonstandard central meridians if necessary
Could code be cast in terms of lat/lons?
Make sure that georeferencing is used consistently (domain, pmesh, sww files, ...) (See ticket:16) Test that least_squares (and elsewhere) correctly reconciles different georefs. (See Karratha)
Ability to create additional quantities and initialise arbitrarily
File management (msh, pts, dem, ..) - introduce the notion of a project
Reduce # of methods that read/write sww files (Yes)