Within projects, and in certain other lists if you group/sort the list by Context, Priority etc you cannot see which of the tasks are Next and which are Waiting etc. It would be useful to have a simple visual indication of which "Box" the task belongs to when looking at such lists.

I am not a designer and I do not know what would look nice and clear, but I would prefer something discreet and elegant (not glaring or cheap looking). Just to give you an idea of what I mean, though, suppose, for example, that the task's checkbox could contain a mini-version of the Box's "logo" (from the left menu under FOCUS; e.g. the "cloud" for Someday or the "table" for Scheduled), or suppose there could be a small text after the task name (similar to @context #project), saying which Box this task is from (e.g. "Next, "Waiting).